The Bolt,machine, cataloged under National Stock Number 5306-01-316-7641, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is M.s. Aerospace Inc. Dba Ms Aerospace Inc. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-316-7641 |
| Primary Part Number | ST1508-12 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | M.s. Aerospace Inc. Dba Ms Aerospace Inc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.006 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN |
| Head Height | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Fastener Length | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.398 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Thread Length | 0.750 INCHES NOMINAL IN |
| Material Document and Classification | PWA 96,CAGE77445 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.026 INCHES NOMINAL IN |
| Width Between Flats | 0.435 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | NICKEL ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| ST1508-12 | Morton Grinding, Inc Dba Morton Manufacturing (USA) |
| ST1508-12 | Acufast Aircraft Products (USA) |
| ST1508-12 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| ST1508-12 PRIMARY | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| ST1508-12 | Rtx Corporation Div Pratt & Whitney (USA) |
| Reference | Meaning |
|---|---|
| ST1508-12 | 5/9 Secondary reference Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| ST1508-12 | 5/9 Secondary reference Bristol Industries, Llc |
| 5306PL1499167 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| ST1508-12 | 5/9 Secondary reference U.S. Government activity |
| ST1508-12 | 5/9 Secondary reference Linread Ltd |
| ST1508-12 | 5/9 Secondary reference Textron Inc Camcar Div Sems Products Unit |
| ST1508-12 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5306-01-316-7641 is a Bolt,machine, manufactured by M.s. Aerospace Inc. Dba Ms Aerospace Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-316-7641 has 5 manufacturer part numbers on file: ST1508-12 (Morton Grinding, Inc Dba Morton Manufacturing), ST1508-12 (Acufast Aircraft Products), ST1508-12 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), ST1508-12 (M.s. Aerospace Inc. Dba Ms Aerospace Inc), ST1508-12 (Rtx Corporation Div Pratt & Whitney).
Key specifications for ST1508-12: Extended Washer Thickness: 0.006 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN; Head Height: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Fastener Length: 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN; Extended Washer Diameter: 0.398 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN. 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.