The Clamp,loop, cataloged under National Stock Number 5340-01-341-4959, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Optex Systems, Inc Div Applied Optics Center. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-341-4959 |
| Primary Part Number | 26800337 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Optex Systems, Inc Div Applied Optics Center |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-E-15090 TY 3 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | MIL-B-16540 GR B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Inside Diameter | 1.2505 INCHES MINIMUM AND 1.2515 INCHES MAXIMUM IN |
| Surface Treatment | ENAMEL OVERALL |
| Material | COPPER ALLOY 903 OVERALL |
| 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 |
|---|---|
| 26800337 | Optex Systems, Inc (USA) |
| 26800337 PRIMARY | Optex Systems, Inc Div Applied Optics Center (USA) |
| Reference | Meaning |
|---|---|
| 26800337 | 5/9 Secondary reference L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division |
| 9240-004-38 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command Logistics Support Engineering Activity |
| 26800337-OR-924 0-004-X | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5340-01-341-4959 is a Clamp,loop, manufactured by Optex Systems, Inc Div Applied Optics Center, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-341-4959 has 2 manufacturer part numbers on file: 26800337 (Optex Systems, Inc), 26800337 (Optex Systems, Inc Div Applied Optics Center).
Key specifications for 26800337: Surface Treatment Document and Classification: MIL-E-15090 TY 3 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: MIL-B-16540 GR B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Overall Width: 1.906 INCHES NOMINAL IN; Inside Diameter: 1.2505 INCHES MINIMUM AND 1.2515 INCHES MAXIMUM IN. 5 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.