The Nut,blind Assembly, cataloged under National Stock Number 5310-01-481-7557, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-481-7557 |
| Primary Part Number | BN372-1032-03 |
| Item Name | Nut,blind Assembly |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Lubrication | WAXWAX |
| Surface Treatment Document and Classification | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE NUT |
| Thread Series | UNFUNF |
| Precious Material | SILVER |
| Mounting Style | FLUSH FLANGEFLUSH FLANGE |
| Material Document and Classification | AMS 5735,ALY A-286 ASSN STD SINGLE MATERIAL RESPONSE FLANGE |
| Material Document and Classification | QQ-S-763,TYPE 431 FED SPEC SINGLE MATERIAL RESPONSE NUT |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES0.190 INCHES IN |
| Nut Diameter | 0.309 INCHES NOMINAL0.309 INCHES NOMINAL IN |
| Sleeve Diameter | 0.309 INCHES MINIMUM AND 0.309 INCHES MINIMUM AND 0.312 INCHES MAXIMUM0.312 INCHES MAXIMUM IN |
| Nut Height | 0.307 INCHES NOMINAL0.307 INCHES NOMINAL IN |
| Surface Treatment | SILVER NUT |
| Thread Class | 3B3B |
| Thread Quantity Per Inch | 3232 |
| Material | IRON ALLOY 660 FLANGE |
| Material | STEEL COMP 431 NUT |
| 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 |
|---|---|
| BN372-1032-03 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| BN372-1032-03 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| 5058-1032-03 | 5/2 Secondary reference U.S. Government activity |
| 5058 | D/9 Drawing number reference only U.S. Government activity |
NSN 5310-01-481-7557 is a Nut,blind Assembly, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-481-7557 has 2 manufacturer part numbers on file: BN372-1032-03 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), BN372-1032-03 (Hi-Shear Corporation).
Key specifications for BN372-1032-03: Lubrication: WAXWAX; Surface Treatment Document and Classification: AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE NUT; Thread Series: UNFUNF; Precious Material: SILVER. 17 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.