The Nut,plain,slotted,hexagon, cataloged under National Stock Number 5310-00-452-4953, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bsi Standards Limited. Government technical data includes 13 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-452-4953 |
| Primary Part Number | A103DS |
| Item Name | Nut,plain,slotted,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bsi Standards Limited |
| Status | ACTIVE |
| Width Across Flats | 0.339 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Material Document and Classification | S.92 FSCM K7766 MFR REF SINGLE MATERIAL RESPONSE OR S.112 FSCM K7766 MFR REF SINGLE MATERIAL RESPONSE OR S.113 FSCM K7766 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Nut Height | 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Countersink Angle | 90.0 DEGREES MINIMUM AND 120.0 DEGREES MAXIMUM FIRST END |
| Nut Style | SLOTTED, HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Bearing Surface Type | CHAMFERED |
| 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 |
|---|---|
| A103DS PRIMARY | Bsi Standards Limited (GBR) |
| Reference | Meaning |
|---|---|
| 99-9419539 | 6/9 Informative reference only U.S. Government activity |
| A103DS | 5/9 Secondary reference Bas Components Limited |
| A103DS | C/1 Advisory reference — outside the item-of-supply concept Ufc Aerospace Europe Limited |
NSN 5310-00-452-4953 is a Nut,plain,slotted,hexagon, manufactured by Bsi Standards Limited, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-452-4953 has 1 manufacturer part number on file: A103DS (Bsi Standards Limited).
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-078-6886, 4730-01-649-3013. Verify interchangeability with system specifications before substitution.
Key specifications for A103DS: Width Across Flats: 0.339 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN; Thread Series: UNF; Material Document and Classification: S.92 FSCM K7766 MFR REF SINGLE MATERIAL RESPONSE OR S.112 FSCM K7766 MFR REF SINGLE MATERIAL RESPONSE OR S.113 FSCM K7766 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND. 13 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.