The Nut,self-Locking,spline, cataloged under National Stock Number 5310-00-758-2371, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-758-2371 |
| Primary Part Number | 7341626 |
| Item Name | Nut,self-Locking,spline |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Nut Diameter | 0.345 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN |
| Pilot Diameter | 0.345 INCHES MINIMUM AND 0.351 INCHES MAXIMUM IN |
| Pilot Length | 0.085 INCHES MINIMUM AND 0.091 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.175 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | SPLINE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7341626 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 7341626 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 7341626 | Huck International, Inc (USA) |
| 7341626 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 7341626 | Howmet Global Fastening Systems Inc (USA) |
| 7341626 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 7341626 | Hi-Shear Corporation (USA) |
| 7341626 | West Coast Aerospace, Inc. (USA) |
| 7341626 | Fnss Savunma Sistemleri Anonim Sirketi (TUR) |
| Reference | Meaning |
|---|---|
| 5310007582371 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| RPN10-24SCL | 5/2 Secondary reference U.S. Government activity |
NSN 5310-00-758-2371 is a Nut,self-Locking,spline, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-758-2371 has 9 manufacturer part numbers on file: 7341626 (Sps Technologies, Llc Dba PB Fasteners), 7341626 (U S Army Tank Automotive Command Amsta-Im-Mm), 7341626 (Huck International, Inc), 7341626 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 7341626 (Howmet Global Fastening Systems Inc) and 4 more.
1 possible match (shared part number, not a government interchangeability claim): 5340-00-864-2912. Verify interchangeability with system specifications before substitution.
Key specifications for 7341626: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.190 INCHES IN. 14 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.
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.