The Clamp,loop, cataloged under National Stock Number 5340-01-471-8601, 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 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-471-8601 |
| Primary Part Number | 30-289J04 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Umpco, Inc. Dba Umpco Inc |
| Status | ACTIVE |
| Lug Hole Diameter | 0.199 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | 2024-T42 PER AMS-QQ-A-250/5 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Special Test Features | COLOR = MEDIUM BLUE |
| Supplementary Features | HIGH STRENGTH FLOUROSILICONE |
| Style Designator | SINGLE LOOP |
| Material Document and Classification | MIL-DTL-5541 CLASS 1A MIL STD 1ST MATERIAL RESPONSE AND MIL-DTL-25988, CLASS 2, TYPE-II, GRADE 50 MIL STD 2ND MATERIAL RESPONSE OVERALL A |
| Diameter | 0.250 INCHES NOMINAL IN |
| Surface Treatment | ALUMINUM OVERALL |
| Center to Center Distance Between Loop and Mounting Hole | 0.498 INCHES NOMINAL IN |
| Material | RUBBER FLUOROSILICONE CLASS FQ OVERALL |
| Loop Inside Diameter | 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM 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 |
|---|---|
| 30-289J04 PRIMARY | Umpco, Inc. Dba Umpco Inc (USA) |
| Reference | Meaning |
|---|---|
| 30-289J04 | 1/2 Source control — Government-approved source U.S. Government activity |
| 30-289J04 | 3/2 Design control — primary reference U.S. Government activity |
| 30-289J04 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-471-8601 is a Clamp,loop, manufactured by Umpco, Inc. Dba Umpco Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-471-8601 has 1 manufacturer part number on file: 30-289J04 (Umpco, Inc. Dba Umpco Inc).
Key specifications for 30-289J04: Lug Hole Diameter: 0.199 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN; Surface Treatment Document and Classification: 2024-T42 PER AMS-QQ-A-250/5 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Special Test Features: COLOR = MEDIUM BLUE; Supplementary Features: HIGH STRENGTH FLOUROSILICONE. 11 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.