The Clamp,loop, cataloged under National Stock Number 5340-01-189-7638, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Nmc Group, Inc.. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5340-01-189-7638 |
| Primary Part Number | NMC1001-4 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Nmc Group, Inc. |
| Status | ACTIVE |
| Style Designator | CENTER MOUNT |
| Material Document and Classification | ASTM D4066 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.203 INCHES NOMINAL IN |
| Material Thickness | 0.065 INCHES NOMINAL IN |
| Tongue Hole Type | ROUND, UNTHREADED |
| Material | PLASTIC POLYHEXAMETHYLENE AMIDE OVERALL |
| Loop Inside Diameter | 0.875 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 |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| NMC1001-4 PRIMARY | Nmc Group, Inc. (USA) |
| Reference | Meaning |
|---|---|
| M23190/1-4 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 7681-45987-004 | 7/2 Vendor item drawing reference Raytheon Company |
| 7681-45987-004 | 5/9 Secondary reference Hughes Missile Systems Co San Diego |
NSN 5340-01-189-7638 is a Clamp,loop, manufactured by Nmc Group, Inc., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-189-7638 has 1 manufacturer part number on file: NMC1001-4 (Nmc Group, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5975-01-612-2979. Verify interchangeability with system specifications before substitution.
Key specifications for NMC1001-4: Style Designator: CENTER MOUNT; Material Document and Classification: ASTM D4066 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Diameter: 0.203 INCHES NOMINAL IN; Overall Width: 0.500 INCHES NOMINAL IN. 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.