The Fixture,aircraft Maintenance, cataloged under National Stock Number 4920-00-253-4070, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Woodward Hrt, Inc. Dba Woodward Hrt Inc. Government technical data includes 5 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 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 | 4920-00-253-4070 |
| Primary Part Number | 3151-504 |
| Item Name | Fixture,aircraft Maintenance |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Woodward Hrt, Inc. Dba Woodward Hrt Inc |
| Status | ACTIVE |
| Nominal Overall Width | 8.000 INCHES IN |
| Nominal Overall Length | 25.000 INCHES IN |
| Reference Data and Literature | SERD 1322;TO 33D-1-121 |
| Nominal Overall Height | 6.000 INCHES IN |
| Functional Description | USED TO ALLOW THE VALVE ASSY ON 68-690053-101, -103, OR -105 RUDDER ROTARY HYDRAULIC SERVOACTUATORS TO BE TESTED INDEPENDENTLY |
| 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 |
|---|---|
| 3151-504 PRIMARY | Woodward Hrt, Inc. Dba Woodward Hrt Inc (USA) |
NSN 4920-00-253-4070 is a Fixture,aircraft Maintenance, manufactured by Woodward Hrt, Inc. Dba Woodward Hrt Inc, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-253-4070 has 1 manufacturer part number on file: 3151-504 (Woodward Hrt, Inc. Dba Woodward Hrt Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-255-0201, 5330-01-277-0076. Verify interchangeability with system specifications before substitution.
Key specifications for 3151-504: Nominal Overall Width: 8.000 INCHES IN; Nominal Overall Length: 25.000 INCHES IN; Reference Data and Literature: SERD 1322;TO 33D-1-121; Nominal Overall Height: 6.000 INCHES IN. 5 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.
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.