The Clamp,loop, cataloged under National Stock Number 5340-01-423-0972, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Umpco, Inc. Dba Umpco Inc. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5340-01-423-0972 |
| Primary Part Number | S830H20 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Umpco, Inc. Dba Umpco Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ASTM B633 TY 2 ASSN STD SINGLE TREATMENT RESPONSE BAND |
| Style Designator | OFFSET MOUNT |
| Material Document and Classification | AMS 3303 ASSN STD SINGLE MATERIAL RESPONSE CUSHION |
| Material Document and Classification | QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE BAND |
| Diameter | 7.14 MILLIMETERS NOMINAL MM |
| Material Thickness | 1.52 MILLIMETERS NOMINAL MM |
| Distance From Loop Center to Tongue End | 39.09 MILLIMETERS NOMINAL MM |
| Surface Treatment | ZINC BAND |
| Tongue Hole Type | OBLONG AND ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 29.44 MILLIMETERS NOMINAL MM |
| Material | RUBBER SILICONE CLASS Q CUSHION |
| Material | STEEL COMP 1008 BAND |
| Slot Width | 7.14 MILLIMETERS NOMINAL MM |
| Slot Length | 9.53 MILLIMETERS NOMINAL MM |
| Loop Inside Diameter | 31.75 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| S830H20 PRIMARY | Umpco, Inc. Dba Umpco Inc (USA) |
| C0V-2009 PRIMARY | Kickhaefer Manufacturing Company, Llc Dba Kickhaefer Manufacturing Co (USA) |
| 5630H-20 | Umpco, Inc. Dba Umpco Inc (USA) |
| 12419079-005 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| S630H-20 PRIMARY | Umpco, Inc. Dba Umpco Inc (USA) |
| Reference | Meaning |
|---|---|
| 12419079 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
| 12419079-005 | 5/9 Secondary reference Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc |
| S360H-20 | 5/9 Secondary reference Umpco, Inc. Dba Umpco Inc |
NSN 5340-01-423-0972 is a Clamp,loop, manufactured by Umpco, Inc. Dba Umpco Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-423-0972 has 5 manufacturer part numbers on file: S830H20 (Umpco, Inc. Dba Umpco Inc), C0V-2009 (Kickhaefer Manufacturing Company, Llc Dba Kickhaefer Manufacturing Co), 5630H-20 (Umpco, Inc. Dba Umpco Inc), 12419079-005 (U S Army Tank Automotive Command Amsta-Im-Mm), S630H-20 (Umpco, Inc. Dba Umpco Inc).
3 possible matches (shared part number, not a government interchangeability claim): 5340-01-445-3398, 5340-01-445-4694, 5340-01-470-2870. Verify interchangeability with system specifications before substitution.
Key specifications for S830H20: Surface Treatment Document and Classification: ASTM B633 TY 2 ASSN STD SINGLE TREATMENT RESPONSE BAND; Style Designator: OFFSET MOUNT; Material Document and Classification: AMS 3303 ASSN STD SINGLE MATERIAL RESPONSE CUSHION; Material Document and Classification: QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE BAND. 15 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.