The Clamp,loop, cataloged under National Stock Number 5340-00-019-9503, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5340-00-019-9503 |
| Primary Part Number | 9M9972-12N |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE BAND |
| Cushioning Environmental Protection | HEAT |
| Style Designator | SINGLE LOOP |
| Material Document and Classification | AMS 3651 ASSN STD SINGLE MATERIAL RESPONSE CUSHION |
| Diameter | 0.204 INCHES NOMINAL IN |
| Material Thickness | 0.0285 INCHES MINIMUM AND 0.0355 INCHES MAXIMUM IN |
| Distance From Loop Center to Tongue End | 1.137 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM BAND |
| Center to Center Distance Between Loop and Mounting Hole | 0.842 INCHES NOMINAL IN |
| Material | STEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 BAND |
| Material | PLASTIC CUSHION |
| Loop Inside Diameter | 0.750 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 |
|---|---|
| 9M972-12N | J & M Products, Inc (USA) |
| JM44LC70WPH12YN | J & M Products, Inc (USA) |
| S664NB12 | Umpco, Inc. Dba Umpco Inc (USA) |
| 9M9972-12N PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 1444PHW12Y | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 830-12T | 5/9 Secondary reference U.S. Government activity |
| 10117229 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 23C100-12T | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 144PHW12Y | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| JM44LC33S12T | 5/9 Secondary reference J & M Products, Inc |
| 9M972-12N | 5/2 Secondary reference U.S. Government activity |
NSN 5340-00-019-9503 is a Clamp,loop, manufactured by The Boeing Company Div Defense, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-019-9503 has 4 manufacturer part numbers on file: 9M972-12N (J & M Products, Inc), JM44LC70WPH12YN (J & M Products, Inc), S664NB12 (Umpco, Inc. Dba Umpco Inc), 9M9972-12N (The Boeing Company Div Defense).
1 possible match (shared part number, not a government interchangeability claim): 1680-01-575-8763. Verify interchangeability with system specifications before substitution.
Key specifications for 9M9972-12N: Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE BAND; Cushioning Environmental Protection: HEAT; Style Designator: SINGLE LOOP; Material Document and Classification: AMS 3651 ASSN STD SINGLE MATERIAL RESPONSE CUSHION. 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.