The Nut,plain,slotted,hexagon, cataloged under National Stock Number 5310-00-655-9497, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Baainbw Dokumente Ohne Nutzungsrechte Des Baainbw Fur Beschaffungszwecke. Government technical data includes 13 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-655-9497 |
| Primary Part Number | 25704-281500-31-0 |
| Item Name | Nut,plain,slotted,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Baainbw Dokumente Ohne Nutzungsrechte Des Baainbw Fur Beschaffungszwecke |
| Status | ACTIVE |
| Width Across Flats | 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES OR QQ-Z-325,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Series | UNF |
| Hardness Rating | 121.0 BRINELL STANDARD NOMINAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Nut Height | 0.427 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Nut Style | SLOTTED, HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| 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 |
|---|---|
| 25704-281500-31-0 | Baainbw Dokumente Ohne Nutzungsrechte Des Baainbw Fur Beschaffungszwecke (DEU) |
| 25704-281500-31-0 | Knds Deutschland Gmbh & Co. Kg - Werk Kassel - (DEU) |
| Reference | Meaning |
|---|---|
| MS35692-825 | 5/9 Secondary reference Liebherr-Aerospace Lindenberg Gmbh |
| MS35692-825 | 2/2 Government specification standardization U.S. Government activity |
| MS35692-825 | 5/9 Secondary reference Feinmechanische Werke Mainz Gmbh |
| FFN836GR0UPBTYPE1STYLE3 | 4/1 Identification reference U.S. Government activity |
NSN 5310-00-655-9497 is a Nut,plain,slotted,hexagon, manufactured by Baainbw Dokumente Ohne Nutzungsrechte Des Baainbw Fur Beschaffungszwecke, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-655-9497 has 2 manufacturer part numbers on file: 25704-281500-31-0 (Baainbw Dokumente Ohne Nutzungsrechte Des Baainbw Fur Beschaffungszwecke), 25704-281500-31-0 (Knds Deutschland Gmbh & Co. Kg - Werk Kassel -).
2 possible matches (shared part number, not a government interchangeability claim): 5310-00-655-9551, 5310-00-682-5757. Verify interchangeability with system specifications before substitution.
Key specifications for 25704-281500-31-0: Width Across Flats: 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES OR QQ-Z-325,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL; Thread Series: UNF; Hardness Rating: 121.0 BRINELL STANDARD NOMINAL. 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.