The Hose Assembly,metallic, cataloged under National Stock Number 4720-00-425-6281, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 28 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4720-00-425-6281 |
| Primary Part Number | 6866938 |
| Item Name | Hose Assembly,metallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES SECOND END |
| Measuring Method and Length | 9.620 INCHES NOMINAL WORKING IN |
| Flange Thickness | 0.250 INCHES NOMINAL FIRST END IN |
| Flange Thickness | 0.250 INCHES NOMINAL SECOND END IN |
| Connection Style | PLAIN FIRST END |
| Connection Style | PLAIN SECOND END |
| End Connection Design | ELBOW SECOND END |
| End Connection Design | STRAIGHT FIRST END |
| Layer Composition and Location | OUTER LAYER BRAIDED CORROSION RESISTANT STEEL WIRE |
| Connection Type | PLAIN FACE FLANGE FIRST END |
| Connection Type | PLAIN FACE FLANGE SECOND END |
| Bolt Hole Diameter | 0.218 INCHES NOMINAL SECOND END IN |
| Bolt Hole Diameter | 0.283 INCHES NOMINAL FIRST END IN |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 2.600 INCHES NOMINAL IN |
| Flange Length | 2.454 INCHES NOMINAL FIRST END IN |
| Inside Diameter | 1.750 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 SECOND END |
| Bolt Hole Quantity | 4 FIRST END |
| Center to Center Distance Between Bolt Holes Along Length | 1.611 INCHES NOMINAL FIRST END IN |
| Center to Center Distance Between Bolt Holes Along Width | 1.611 INCHES NOMINAL FIRST END IN |
| Flange Width | 2.454 INCHES NOMINAL FIRST END IN |
| Outer Covering Environmental Protection | CORROSION RESISTANT |
| Flange Style | RECTANGULAR (INCLUDES SQUARE) FIRST END |
| Flange Style | RECTANGULAR (INCLUDES SQUARE) SECOND END |
| End Flange Construction | SOLID SECOND END |
| End Flange Construction | SOLID FIRST END |
| Inner Conveying Tube Style | ANNULAR CLOSE-PITCH CORRUGATED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6866938 | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| 010986 | 3/2 Design control — primary reference U.S. Government activity |
| 010986 | 5/9 Secondary reference U.S. Government activity |
NSN 4720-00-425-6281 is a Hose Assembly,metallic, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-425-6281 has 1 manufacturer part number on file: 6866938 (Allison Transmission Inc Dba Allison Transmission, Inc).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-575-0225. Verify interchangeability with system specifications before substitution.
Key specifications for 6866938: Flow Angle: 90.0 DEGREES SECOND END; Measuring Method and Length: 9.620 INCHES NOMINAL WORKING IN; Flange Thickness: 0.250 INCHES NOMINAL FIRST END IN; Flange Thickness: 0.250 INCHES NOMINAL SECOND END IN. 28 specifications are 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.
NSN 4720-00-425-6281 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.