The Nut, cataloged under National Stock Number 5310-00-063-4043, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is American Piping Accessories Co Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5310-00-063-4043 |
| Primary Part Number | A6UN00-1 304 SS |
| Item Name | Nut |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | American Piping Accessories Co Inc |
| Status | ACTIVE |
| Reference Number Differentiating Characteristics | FLEET BALLISTIC MISSILE QUALITY,AS IDENTIFIED BY QUALITY CONTROL NO. P0S0500799 |
| 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 |
|---|---|
| A6UN00-1 304 SS | American Piping Accessories Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 50N1SS | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 50N1 | 5/9 Secondary reference U.S. Government activity |
| 50N1SS | 3/1 Design control — primary reference U.S. Government activity |
| R-0263-1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| P-N-50N-1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5310-00-063-4043 is a Nut, manufactured by American Piping Accessories Co Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-063-4043 has 1 manufacturer part number on file: A6UN00-1 304 SS (American Piping Accessories Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-329-2849. Verify interchangeability with system specifications before substitution.
Key specifications for A6UN00-1 304 SS: Reference Number Differentiating Characteristics: FLEET BALLISTIC MISSILE QUALITY,AS IDENTIFIED BY QUALITY CONTROL NO. P0S0500799. 1 specification is 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.