The Torque Assembly,brake, cataloged under National Stock Number 1630-01-347-8905, is classified within Federal Supply Class 1630 (Aircraft Wheel and Brake Systems) of the Aircraft Components and Accessories group. The manufacturer of record is Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1630-01-347-8905 |
| Primary Part Number | DAA3255A159-001 |
| Item Name | Torque Assembly,brake |
| FSC / FSG | 1630 / 16 — Aircraft Wheel and Brake Systems |
| Manufacturer | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
| Status | ACTIVE |
| General Characteristics Item Description | IRREGULAR SHAPED WITH CENTER CUT HOLE 1.312 IN ID.,PART OF RIGHT HAND BRAKE SECTION IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| DAA3255A159-001 PRIMARY | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| Reference | Meaning |
|---|---|
| DAA3255A159-001 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| DAA3255A159 | D/9 Drawing number reference only Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
NSN 1630-01-347-8905 is a Torque Assembly,brake, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems, classified under FSC 1630, Aircraft Wheel and Brake Systems. Status: active.
NSN 1630-01-347-8905 has 1 manufacturer part number on file: DAA3255A159-001 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems).
1 possible match (shared part number, not a government interchangeability claim): 1680-01-355-9557. Verify interchangeability with system specifications before substitution.
Key specifications for DAA3255A159-001: General Characteristics Item Description: IRREGULAR SHAPED WITH CENTER CUT HOLE 1.312 IN ID.,PART OF RIGHT HAND BRAKE SECTION IN. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1630-01-347-8905 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.