The Seal Assembly,shaft,spring Loade, cataloged under National Stock Number 4320-01-296-5879, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is John Crane, Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-296-5879 |
| Primary Part Number | US71435 |
| Item Name | Seal Assembly,shaft,spring Loade |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | John Crane, Inc |
| Status | ACTIVE |
| General Characteristics Item Description | OPERATING PRESSURE 125PSIG,SHALL ACCOMODATE AXIAL SHAFT MOTION OF PLUS OR MINUS 1 INCH,RADIAL SHAFT MOTION OF PLUS OR MINUS .750 INCHES,ANGULAR SHAFT MOTION OF PLUS OR MINUS 2.5 DEGREES,TEMPERATURE RANGE OF 28 DEGREES TO 95 DEGREES FARENHEIT 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 |
|---|---|
| US71435 PRIMARY | John Crane, Inc (USA) |
| MX9/WWS1 29.75 DIA | Naval Inventory Control Point Mechanicsburg (USA) |
NSN 4320-01-296-5879 is a Seal Assembly,shaft,spring Loade, manufactured by John Crane, Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-296-5879 has 2 manufacturer part numbers on file: US71435 (John Crane, Inc), MX9/WWS1 29.75 DIA (Naval Inventory Control Point Mechanicsburg).
3 possible matches (shared part number, not a government interchangeability claim): 2010-01-333-9251, 2010-01-715-9061, 2010-01-715-9072. Verify interchangeability with system specifications before substitution.
Key specifications for US71435: General Characteristics Item Description: OPERATING PRESSURE 125PSIG,SHALL ACCOMODATE AXIAL SHAFT MOTION OF PLUS OR MINUS 1 INCH,RADIAL SHAFT MOTION OF PLUS OR MINUS .750 INCHES,ANGULAR SHAFT MOTION OF PLUS OR MINUS 2.5 DEGREES,TEMPERATURE RANGE OF 28 DEGREES TO 95 DEGREES FARENHEIT IN; End Item Identification: STERN TUBE SEAL. 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.