The Bolt,machine, cataloged under National Stock Number 5306-01-537-4491, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Tld Ace Corp Div Tld Ace. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-537-4491 |
| Primary Part Number | F971 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Tld Ace Corp Div Tld Ace |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND |
| Color | BLACK OVERALL |
| Minimum Tensile Strength | 190000 POUNDS PER SQUARE INCH LBS |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| F971 PRIMARY | Tld Ace Corp Div Tld Ace (USA) |
NSN 5306-01-537-4491 is a Bolt,machine, manufactured by Tld Ace Corp Div Tld Ace, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-537-4491 has 1 manufacturer part number on file: F971 (Tld Ace Corp Div Tld Ace).
Key specifications for F971: Thread Direction: RIGHT-HAND; Color: BLACK OVERALL; Special Features: OVERALL LENGTH IN INCHES 1.750; Minimum Tensile Strength: 190000 POUNDS PER SQUARE INCH LBS. 4 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.