The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-172-5135, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Houston Precision Fasteners I Lp. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Houston Precision Fasteners I Lp (CAGE 1VSL7); Bristol Industries, Llc (CAGE 27238); Sps Technologies, Llc Dba PB Fasteners (CAGE 56878); Howmet Global Fastening Systems Inc (CAGE 15653); Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (CAGE 16258) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-172-5135 |
| Primary Part Number | HS262-524 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Houston Precision Fasteners I Lp |
| Status | ACTIVE |
| 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 |
|---|---|
| HS262-524 PRIMARY | Houston Precision Fasteners I Lp (USA) |
| BH00510-5 PRIMARY | Bristol Industries, Llc (USA) |
| HS262-524 | Bristol Industries, Llc (USA) |
| 48FLW-524 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HS262-524 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| SLN149-524 PRIMARY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| HS262-524 PRIMARY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| H39921-5 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| HS262-524 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| HS262-524 | 7/2 Vendor item drawing reference The Boeing Company |
| HS262-524 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 5310-01-172-5135 is a Nut,self-Locking,extended Washer, manufactured by Houston Precision Fasteners I Lp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-172-5135 has 9 manufacturer part numbers on file: HS262-524 (Houston Precision Fasteners I Lp), BH00510-5 (Bristol Industries, Llc), HS262-524 (Bristol Industries, Llc), 48FLW-524 (Sps Technologies, Llc Dba PB Fasteners), HS262-524 (Howmet Global Fastening Systems Inc) and 4 more.
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.