The Clamp,loop, cataloged under National Stock Number 5340-01-418-3447, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is General Electric Company. Government technical data includes 9 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-418-3447 |
| Primary Part Number | J1221G21 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Style Designator | SINGLE LOOP |
| Material Document and Classification | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.2740 INCHES MINIMUM AND 0.2880 INCHES MAXIMUM IN |
| Material Thickness | 0.0570 INCHES MINIMUM AND 0.0690 INCHES MAXIMUM IN |
| Distance From Loop Center to Tongue End | 1.3320 INCHES NOMINAL IN |
| Tongue Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 1.1090 INCHES MINIMUM AND 1.1590 INCHES MAXIMUM IN |
| Material | STEEL COMP 321 OVERALL |
| Loop Inside Diameter | 1.2970 INCHES MINIMUM AND 1.3270 INCHES MAXIMUM IN |
| 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 |
|---|---|
| J1221G21 PRIMARY | General Electric Company (USA) |
NSN 5340-01-418-3447 is a Clamp,loop, manufactured by General Electric Company, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-418-3447 has 1 manufacturer part number on file: J1221G21 (General Electric Company).
Key specifications for J1221G21: Style Designator: SINGLE LOOP; Material Document and Classification: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Diameter: 0.2740 INCHES MINIMUM AND 0.2880 INCHES MAXIMUM IN; Overall Width: 0.4850 INCHES MINIMUM AND 0.5150 INCHES MAXIMUM IN. 9 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.