The Bolt,machine, cataloged under National Stock Number 5306-01-281-0894, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 14 specifications, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-281-0894 |
| Primary Part Number | 639AS6699 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Head Height | 0.175 INCHES NOMINAL IN |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Thread Length | 0.272 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5844 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN |
| Countersink Angle | 100.0 DEGREES MINIMUM AND 102.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | COBALT COMP MP-35-N OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 639AS6699 | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| 639AS6699 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 588.51-100002-001 | Diehl Defence Gmbh & Co. Kg (DEU) |
| Reference | Meaning |
|---|---|
| 10176931 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 639AS6699 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 639AS6699 | 5/9 Secondary reference Raytheon Company |
| 5306PL2173958 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5306-01-281-0894 is a Bolt,machine, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-281-0894 has 3 manufacturer part numbers on file: 639AS6699 (M.s. Aerospace Inc. Dba Ms Aerospace Inc), 639AS6699 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 588.51-100002-001 (Diehl Defence Gmbh & Co. Kg).
Key specifications for 639AS6699: Head Height: 0.175 INCHES NOMINAL IN; Fastener Length: 0.500 INCHES NOMINAL IN; Thread Length: 0.272 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN; Material Document and Classification: AMS 5844 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 14 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.