The Clamp,loop, cataloged under National Stock Number 5340-01-446-1618, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-446-1618 |
| Primary Part Number | 63E916009G2 REV. C IT556 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416, TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OR ASTM-B-633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Cushioning Environmental Protection | TEAR RESISTANT |
| Style Designator | SINGLE LOOP |
| Material Document and Classification | ASTM-A-109 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.2030 INCHES NOMINAL IN |
| Material Thickness | 0.0400 INCHES NOMINAL IN |
| Distance From Loop Center to Tongue End | 2.2940 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL |
| Tongue Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 1.5310 INCHES NOMINAL IN |
| Material | STEEL COMP 1005 OR STEEL COMP 1006 OR STEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1012 OR STEEL COMP 1013 OR STEEL COMP 1014 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL |
| Loop Inside Diameter | 2.3750 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 |
|---|---|
| 63E916009G2 REV. C IT556 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| Reference | Meaning |
|---|---|
| MS21333-88 | 5/9 Secondary reference U.S. Government activity |
| 5342PL0884147 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5340-01-446-1618 is a Clamp,loop, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-446-1618 has 1 manufacturer part number on file: 63E916009G2 REV. C IT556 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 63E916009G2 REV. C IT556: Surface Treatment Document and Classification: QQ-P-416, TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OR ASTM-B-633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Cushioning Environmental Protection: TEAR RESISTANT; Style Designator: SINGLE LOOP; Material Document and Classification: ASTM-A-109 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 12 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.