The Clamp,loop, cataloged under National Stock Number 5340-01-257-8719, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Plc Naval Marine. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-01-257-8719 |
| Primary Part Number | JRA4989 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Rolls-Royce Plc Naval Marine |
| Status | ACTIVE |
| Style Designator | SINGLE LOOP |
| Material Document and Classification | AMS5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.199 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN |
| Material Thickness | 0.040 INCHES NOMINAL IN |
| Distance From Loop Center to Tongue End | 1.882 INCHES MINIMUM AND 1.912 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Tongue Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 0.445 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN |
| Material | STEEL COMP 321 OVERALL |
| Loop Inside Diameter | 2.875 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| JRA4989 | Rolls-Royce Plc Naval Marine (GBR) |
| TA02137H046HB | Safran Electrical Components Uk Limited (GBR) |
| Reference | Meaning |
|---|---|
| TA02137H046HB | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-257-8719 is a Clamp,loop, manufactured by Rolls-Royce Plc Naval Marine, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-257-8719 has 2 manufacturer part numbers on file: JRA4989 (Rolls-Royce Plc Naval Marine), TA02137H046HB (Safran Electrical Components Uk Limited).
Key specifications for JRA4989: Style Designator: SINGLE LOOP; Material Document and Classification: AMS5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Diameter: 0.199 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN; Overall Width: 0.497 INCHES MINIMUM AND 0.503 INCHES MAXIMUM IN. 10 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.