The Nut,bombrack Attach,pylon, cataloged under National Stock Number 5310-01-309-1893, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bristol Industries, Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-309-1893 |
| Primary Part Number | 74A731256-2001 |
| Item Name | Nut,bombrack Attach,pylon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bristol Industries, Llc |
| Status | ACTIVE |
| General Characteristics Item Description | INCONEL 718 PER AMS 5662; 3/4-16 UNJF-3B THD; 1.485 IN. W; 1.760 IN. LG; 1.000 IN. H IN |
| 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 |
|---|---|
| 74A731256-2001 PRIMARY | Bristol Industries, Llc (USA) |
| 74A731256-2001 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 74A731256-2001 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 74A731256-2001 | C/1 Advisory reference — outside the item-of-supply concept Sps Technologies Inc |
| 74A731256-2001 | C/1 Advisory reference — outside the item-of-supply concept The Boeing Company |
| 74A731256-2001 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 74A731256-2001 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-309-1893 is a Nut,bombrack Attach,pylon, manufactured by Bristol Industries, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-309-1893 has 3 manufacturer part numbers on file: 74A731256-2001 (Bristol Industries, Llc), 74A731256-2001 (Sps Technologies, Llc Dba PB Fasteners), 74A731256-2001 (Howmet Global Fastening Systems Inc).
Key specifications for 74A731256-2001: General Characteristics Item Description: INCONEL 718 PER AMS 5662; 3/4-16 UNJF-3B THD; 1.485 IN. W; 1.760 IN. LG; 1.000 IN. H IN; End Item Identification: AIRCRAFT MODEL F-18. 1 specification is 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 5310-01-309-1893 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.