The Bolt,tee Head, cataloged under National Stock Number 5306-00-501-3681, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-501-3681 |
| Primary Part Number | 5013681 |
| Item Name | Bolt,tee Head |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Head Height | 0.122 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN |
| Fastener Length | 0.680 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-P-16232 TYPE M CLASS 1 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-P-16232 TYPE Z CLASS 1 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| Thread Length | 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN |
| Hardness Rating | 50.0 ROCKWELL D MINIMUM AND 56.0 ROCKWELL D MAXIMUM OVERALL |
| Material Document and Classification | ASTM A-322 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A-331 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A-322 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A-331 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A-322 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A-331 ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | TEE NO. 3 |
| Thread Direction | RIGHT-HAND |
| Head Length | 0.697 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN |
| Width Between Flats | 0.480 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN |
| Surface Treatment | PHOSPHATE MANGANESE OR PHOSPHATE ZINC OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL OVERALL |
| Thread Series Designator | UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A10214 | Fnh Uk Ltd (GBR) |
| 3662004468 | Fn Herstal Dba Fabrique Nationale Nouvelle Herstal (BEL) |
| 201050006 | Samsun Yurt Sav.san. Ve Tic.a.s. (TUR) |
| 5013681 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| Reference | Meaning |
|---|---|
| 5013681 | 5/9 Secondary reference Springfield Armory |
| 5306PL1648621 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 366-200-4468 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 3662004468 | 5/9 Secondary reference Fn America Llc Div Columbia, Sc |
| 10092991 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 5306005013681 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 5306PL0954029 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5306-00-501-3681 is a Bolt,tee Head, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-501-3681 has 4 manufacturer part numbers on file: A10214 (Fnh Uk Ltd), 3662004468 (Fn Herstal Dba Fabrique Nationale Nouvelle Herstal), 201050006 (Samsun Yurt Sav.san. Ve Tic.a.s.), 5013681 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-321-3516. Verify interchangeability with system specifications before substitution.
Key specifications for 5013681: Head Height: 0.122 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN; Fastener Length: 0.680 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-P-16232 TYPE M CLASS 1 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-P-16232 TYPE Z CLASS 1 MIL SPEC 2ND TREATMENT RESPONSE OVERALL; Thread Length: 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN. 16 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5306-00-501-3681 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.