The Retainer,nut and Bolt, cataloged under National Stock Number 5340-01-255-3657, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Esna, Llc. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-255-3657 |
| Primary Part Number | 3277-108 RET |
| Item Name | Retainer,nut and Bolt |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE |
| Grip Height | 0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN |
| Style Designator | BARREL |
| Material Document and Classification | AMS 5542,X-750 ASSN STD SINGLE MATERIAL RESPONSE |
| Material Thickness | 0.012 INCHES MINIMUM IN |
| Surface Treatment | PASSIVATE |
| Material | NICKEL ALLOY X-750 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 3277-108 RET | Esna, Llc (USA) |
| Reference | Meaning |
|---|---|
| LE114-0078-1010 | 7/2 Vendor item drawing reference The Boeing Company Div Legacy Am&m |
| SLR4001-10A | 3/2 Design control — primary reference U.S. Government activity |
| 3277-108 RET | 5/9 Secondary reference Harvard Industries Inc |
NSN 5340-01-255-3657 is a Retainer,nut and Bolt, manufactured by Esna, Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-255-3657 has 1 manufacturer part number on file: 3277-108 RET (Esna, Llc).
Key specifications for 3277-108 RET: Overall Height: 0.811 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE; Grip Height: 0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN; Style Designator: BARREL. 7 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.