The Bar,chain Tension Compensating, cataloged under National Stock Number 3020-01-009-4829, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-009-4829 |
| Primary Part Number | 595102 |
| Item Name | Bar,chain Tension Compensating |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| General Characteristics Item Description | NYLON,L-P-410A,3.88IN.LG,0.50 IN DIA,0.16IN.DIA HOLE THROUGH LONGITUDINAL AXIS,1/4-28 NF-2B RH THD 0.62 IN.DEEP BOTH ENDS,THREE 0.16 IN.DIA HOLES THROUGH THE AXIS AT 60 DEGREE ANGLES AND LOCATED DEAD CENTER AND 0.75 IN.TO EACH SIDE. A |
| 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 |
|---|---|
| 595102 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 595102 | 5/9 Secondary reference Litton Systems Inc. Div Navigation Systems Division |
NSN 3020-01-009-4829 is a Bar,chain Tension Compensating, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-009-4829 has 1 manufacturer part number on file: 595102 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
1 possible match (shared part number, not a government interchangeability claim): 6685-01-382-2128. Verify interchangeability with system specifications before substitution.
Key specifications for 595102: General Characteristics Item Description: NYLON,L-P-410A,3.88IN.LG,0.50 IN DIA,0.16IN.DIA HOLE THROUGH LONGITUDINAL AXIS,1/4-28 NF-2B RH THD 0.62 IN.DEEP BOTH ENDS,THREE 0.16 IN.DIA HOLES THROUGH THE AXIS AT 60 DEGREE ANGLES AND LOCATED DEAD CENTER AND 0.75 IN.TO EACH SIDE. A. 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.