The Bolt,machine, cataloged under National Stock Number 5306-01-399-7050, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Coffin Turbo Pump Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Coffin Turbo Pump Inc (CAGE 0APJ5) |
| Parameter | Value |
|---|---|
| NSN | 5306-01-399-7050 |
| Primary Part Number | SKB-465 ITEM X503 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Coffin Turbo Pump Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| SKB-465 ITEM X503 PRIMARY | Coffin Turbo Pump Inc (USA) |
| Reference | Meaning |
|---|---|
| 17197-9 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| X503 | 5/9 Secondary reference Coffin Turbo Pump Inc |
NSN 5306-01-399-7050 is a Bolt,machine, manufactured by Coffin Turbo Pump Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-399-7050 has 1 manufacturer part number on file: SKB-465 ITEM X503 (Coffin Turbo Pump Inc).
1 possible match (shared part number, not a government interchangeability claim): 4330-01-633-8675. Verify interchangeability with system specifications before substitution.
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.