The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-00-133-3671, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 15 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-133-3671 |
| Primary Part Number | 5310-OH58-001 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Washer Outside Diameter | 1.307 INCHES MINIMUM AND 1.317 INCHES MAXIMUM IN |
| Width Across Flats | 1.050 INCHES MINIMUM AND 1.067 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Temp Rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| Washer Thickness | 0.290 INCHES NOMINAL IN |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.875 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | DOUBLE HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 14 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| 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 |
|---|---|
| 5310-OH58-001 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BH00935-14 PRIMARY | Bristol Industries, Llc (USA) |
| 5310-OH58-001 | Bristol Industries, Llc (USA) |
| EB9025-14 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 5310-OH58-001 | 5/2 Secondary reference U.S. Government activity |
| 5310-OH58-001 | 1/2 Source control — Government-approved source U.S. Government activity |
| EB9025-14 | 5/2 Secondary reference U.S. Government activity |
| BH00935-14 | 5/2 Secondary reference U.S. Government activity |
| EB9025-14 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-00-133-3671 is a Nut,self-Locking,extended Washer, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-133-3671 has 4 manufacturer part numbers on file: 5310-OH58-001 (Sps Technologies, Llc Dba PB Fasteners), BH00935-14 (Bristol Industries, Llc), 5310-OH58-001 (Bristol Industries, Llc), EB9025-14 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 5310-OH58-001: Overall Height: 0.953 INCHES NOMINAL IN; Washer Outside Diameter: 1.307 INCHES MINIMUM AND 1.317 INCHES MAXIMUM IN; Width Across Flats: 1.050 INCHES MINIMUM AND 1.067 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 15 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.