The Bolt,machine, cataloged under National Stock Number 5306-01-398-9597, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Spirax Sarco Inc Dba Spirax Sarco. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Bolt,machine |
| FSC / FSG | 5306 — Bolts (FSG 53) |
| Manufacturers | Spirax Sarco Inc Dba Spirax Sarco (CAGE 53059) |
| Parameter | Value |
|---|---|
| NSN | 5306-01-398-9597 |
| Primary Part Number | 43896 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Spirax Sarco Inc Dba Spirax Sarco |
| Status | ACTIVE |
| Fastener Length | 0.875 INCHES NOMINAL IN |
| Material Document and Classification | ASTM B97, ALY B-14 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.3125 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | COPPER ALLOY 651 OR COPPER ALLOY 655 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 43896 PRIMARY | Spirax Sarco Inc Dba Spirax Sarco (USA) |
| J-429 PC. NO. 9 | Spirax Sarco Inc Dba Spirax Sarco (USA) |
NSN 5306-01-398-9597 is a Bolt,machine, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-398-9597 has 2 manufacturer part numbers on file: 43896 (Spirax Sarco Inc Dba Spirax Sarco), J-429 PC. NO. 9 (Spirax Sarco Inc Dba Spirax Sarco).
1 possible match (shared part number, not a government interchangeability claim): 6680-01-400-2932. Verify interchangeability with system specifications before substitution.
Key specifications for 43896: Fastener Length: 0.875 INCHES NOMINAL IN; Material Document and Classification: ASTM B97, ALY B-14 ASSN STD ALL MATERIAL RESPONSES OVERALL; Nominal Thread Diameter: 0.3125 INCHES IN; Thread Direction: RIGHT-HAND. 8 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.