The Fixture,aircraft Maintenance, cataloged under National Stock Number 4920-01-039-7877, 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 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace. Government technical data includes 2 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-039-7877 |
| Primary Part Number | TSS3550-TF1 |
| Item Name | Fixture,aircraft Maintenance |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace |
| Status | ACTIVE |
| Reference Data and Literature | TO 9H8-4-81-3 |
| Functional Description | BASE INCLUDES MOUNTING STUDS AND DIAL INDICATOR FOR MEASUREMENTS DURING FUNCTIONAL TESTING |
| 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 |
|---|---|
| TSS3550-TF1 PRIMARY | Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA) |
NSN 4920-01-039-7877 is a Fixture,aircraft Maintenance, manufactured by Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-039-7877 has 1 manufacturer part number on file: TSS3550-TF1 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).
Key specifications for TSS3550-TF1: Reference Data and Literature: TO 9H8-4-81-3; Special Features: TO NAME: ARM TRAVEL TEST FIXTURE; Functional Description: BASE INCLUDES MOUNTING STUDS AND DIAL INDICATOR FOR MEASUREMENTS DURING FUNCTIONAL TESTING; End Item Identification: E-3A ACFT; GEAR LOCK OPERATED SHUTOFF VALVE ASSEMBLY S-3550-1 & 40011-001 A. 2 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.