The Plug,hose Protector, cataloged under National Stock Number 4940-00-559-7982, is classified within Federal Supply Class 4940 (Miscellaneous Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Jenny Products, Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4940-00-559-7982 |
| Primary Part Number | JP3921-A |
| Item Name | Plug,hose Protector |
| FSC / FSG | 4940 / 49 — Miscellaneous Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Jenny Products, Inc |
| Status | ACTIVE |
| General Characteristics Item Description | THE SET CONSIST OF ONE 1.750 IN. NPT THD. .875 IN. THD LG; WITH ONE STEEL ROLL PIN 0.125 BY 0.750 IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| JP3921-A PRIMARY | Jenny Products, Inc (USA) |
| Reference | Meaning |
|---|---|
| JP3921-C | 5/9 Secondary reference Jenny Products, Inc |
NSN 4940-00-559-7982 is a Plug,hose Protector, manufactured by Jenny Products, Inc, classified under FSC 4940, Miscellaneous Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4940-00-559-7982 has 1 manufacturer part number on file: JP3921-A (Jenny Products, Inc).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-603-8269. Verify interchangeability with system specifications before substitution.
Key specifications for JP3921-A: General Characteristics Item Description: THE SET CONSIST OF ONE 1.750 IN. NPT THD. .875 IN. THD LG; WITH ONE STEEL ROLL PIN 0.125 BY 0.750 IN. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.