Official — for public release Field Manual MSU-01 · Issue 2026 · Independent

Annex C · The manual

NSN Lookup

Almost every piece of issued kit carries a 13-digit NATO Stock Number. It tells you what kind of item it is and which country catalogued it. It's also one of the quickest ways to tell issue kit from commercial copies.

8415Supply class (FSC)
what kind of item
-
99Country code (NCB)
99 = United Kingdom
-
123-4567Item number
unique to the item

The last nine digits (country code + item number) together are the NIIN, the National Item Identification Number.

Form MSU/C1 — Stock number lookupOfficial

Want the exact item? Search the full number in NATO's free NMCRL database.

C.2 — Quick reference

Supply classes you'll see on surplus

The first four digits. For example, most British combat clothing is 8415-99-…

Common supply classes (FSC)
FSCOfficial titleTypically
2320Trucks and truck tractors, wheeledLand Rovers and trucks themselves
2510Vehicular cab, body and frame componentsBody panels, doors, canopies
2530Vehicular brake, steering, axle, wheel and track componentsBrakes, steering, axles
2540Vehicular furniture and accessoriesSeats, mirrors, racks, fittings
2590Miscellaneous vehicular componentsAssorted vehicle parts
2610Tyres and tubes, pneumatic, except aircraftVehicle tyres
2910Engine fuel system components, non-aircraftFuel pumps, filters, lines
2920Engine electrical system components, non-aircraftAlternators, starters, wiring
2940Engine air and oil filters, non-aircraftFilters
4240Safety and rescue equipmentSafety kit
5110Hand tools, edged, non-poweredKnives, axes, machetes
5120Hand tools, non-edged, non-poweredShovels, entrenching tools, spanners
5820Radio and TV communication equipment, except airborneRadios
5855Night vision equipmentNight vision
5965Headsets, handsets, microphones and speakersHeadsets
6135Batteries, non-rechargeableBatteries
6140Batteries, rechargeableRechargeable batteries
6230Electric portable and hand lighting equipmentTorches and lamps
6515Medical and surgical instruments, equipment and suppliesMedical supplies
6545Replenishable field medical sets, kits and outfitsFirst aid and medical kits
6605Navigational instrumentsCompasses
6645Time measuring instrumentsWatches and clocks
7210Household furnishingsBlankets, bedding
7240Safety containersJerrycans
7310Food cooking, baking and serving equipmentField cooking kit
7330Kitchen hand tools and utensilsUtensils
7340Cutlery and flatwareKFS (knife, fork, spoon)
7350TablewareMugs, plates
8105Bags and sacksKit bags, sandbags
8140Ammunition and nuclear ordnance boxes, packages and special containersAmmo cans and boxes
8305Textile fabricsFabric, camo cloth
8340Tents and tarpaulinsTents, bashas, tarps
8345Flags and pennantsFlags
8405Outerwear, men'sJackets, coats, trousers
8410Outerwear, women'sWomen's outerwear
8415Clothing, special purposeCombat clothing, smocks, waterproofs
8420Underwear and nightwear, men'sBase layers, underwear
8430Footwear, men'sBoots and shoes
8440Hosiery, handwear and clothing accessories, men'sSocks, gloves, hats
8455Badges and insigniaBadges, patches, rank slides
8460LuggageHoldalls, suitcases
8465Individual equipmentWebbing, bergens, sleeping bags
8470Armour, personalHelmets, body armour
8475Specialised flight clothing and accessoriesFlight suits, aircrew kit
8970Composite food packagesRation packs
Country codes (NCB) — digits 5–6
CodeCountry
00United States
01United States
11NATO standard item
12Germany
13Belgium
14France
15Italy
16Czech Republic
17Netherlands
18South Africa
19Brazil
20Canada
21Canada
22Denmark
23Greece
24Iceland
25Norway
26Portugal
27Turkey
28Luxembourg
29Argentina
30Japan
31Israel
32Singapore
33Spain
34Malaysia
35Thailand
36Egypt
37Republic of Korea
38Estonia
39Romania
40Slovakia
41Austria
42Slovenia
43Poland
44United Nations standard item
45Indonesia
46Philippines
47Lithuania
48Fiji
49Tonga
50Bulgaria
51Hungary
52Chile
53Croatia
54North Macedonia
55Latvia
56Oman
57Russian Federation
58Finland
59Albania
60Kuwait
61Ukraine
62Belarus
63Morocco
64Sweden
65Papua New Guinea
66Australia
67Afghanistan
68Georgia
70Saudi Arabia
71United Arab Emirates
72India
73Serbia
74Pakistan
75Bosnia and Herzegovina
76Brunei
77Montenegro
78Jordan
79Peru
80Colombia
81Qatar
82Algeria
98New Zealand
99United Kingdom

Next step

A valid NSN is a good sign, but it isn't proof on its own. Run the genuine-or-repro checklist too.