The Clamp,loop, cataloged under National Stock Number 5340-00-959-5639, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Triumph Controls, Llc Dba Triumph Controls, Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-959-5639 |
| Primary Part Number | 20191 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Triumph Controls, Llc Dba Triumph Controls, Llc |
| Status | ACTIVE |
| Style Designator | SINGLE LOOP |
| Material Document and Classification | AMS 5515 ASSN STD SINGLE MATERIAL RESPONSE BAND |
| Diameter | 0.204 INCHES NOMINAL IN |
| Material Thickness | 0.041 INCHES NOMINAL IN |
| Distance From Loop Center to Tongue End | 0.871 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE BAND |
| Tongue Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 0.686 INCHES NOMINAL IN |
| Material | STEEL COMP 302 BAND |
| Loop Inside Diameter | 0.187 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 |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 20191 PRIMARY | Triumph Controls, Llc Dba Triumph Controls, Llc (USA) |
| PR127 PRIMARY | General Electric Company Dba Ge Structured Services Div General Electric Structured Services, Lp (USA) |
| Reference | Meaning |
|---|---|
| PR127 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-00-959-5639 is a Clamp,loop, manufactured by Triumph Controls, Llc Dba Triumph Controls, Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-959-5639 has 2 manufacturer part numbers on file: 20191 (Triumph Controls, Llc Dba Triumph Controls, Llc), PR127 (General Electric Company Dba Ge Structured Services Div General Electric Structured Services, Lp).
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-205-1081, 6650-01-259-4289, 6520-01-275-7397. Verify interchangeability with system specifications before substitution.
Key specifications for 20191: Style Designator: SINGLE LOOP; Material Document and Classification: AMS 5515 ASSN STD SINGLE MATERIAL RESPONSE BAND; Diameter: 0.204 INCHES NOMINAL IN; Overall Width: 0.380 INCHES NOMINAL 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.