PartsTable TECHNICAL DATA SHEET
NSN 3120-01-596-4978Government record, cited

Bearing, Composite3120-01-596-4978

NSN 3120-01-596-4978 · NIIN 015964978 · Part number 7931K85
Mcmaster-Carr Supply Co · FSC 3120 — Bearings, Plain, Unmounted · FSG 31 — Bearings · CAGE 39428
Government record, cited
NSN 3120-01-596-4978 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-596-4978. Manufacturer of record part number: 7931K85.
Also searched as  3120-01-596-4978 · 3120015964978 · NIIN 015964978 · 01-596-4978 · FSC 3120 Bearings, Plain, Unmounted · CAGE 39428 · 7931K85
Nearby stock numbers  ·
Features
  • Bearing,composite — FSC 3120
  • Overall Diameter: 1.000 INCHES NOMINAL IN
  • 1 manufacturer part number on file
  • Manufacturer of record: Mcmaster-Carr Supply Co
Identification
  • NSN: 3120-01-596-4978
  • NIIN: 015964978
  • FSC: 3120 — Bearings, Plain, Unmounted
  • FSG: 31 — Bearings
  • Primary part number: 7931K85
  • Manufacturer: Mcmaster-Carr Supply Co
General Description

The Bearing,composite, cataloged under National Stock Number 3120-01-596-4978, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Mcmaster-Carr Supply Co. 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. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-01-596-4978
Primary Part Number7931K85
Item NameBearing,composite
FSC / FSG3120 / 31 — Bearings, Plain, Unmounted
ManufacturerMcmaster-Carr Supply Co
StatusACTIVE
Overall Diameter1.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
7931K85 PRIMARY Mcmaster-Carr Supply Co (USA)
No interchangeability data on file.
Other items in FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288
3120-00-001-1288 · Item name not on file
3120-00-001-1835
3120-00-001-1835 · Item name not on file
3120-00-001-1838
3120-00-001-1838 · Item name not on file
3120-00-001-1928
3120-00-001-1928 · Item name not on file
3120-00-001-1934
3120-00-001-1934 · Item name not on file
3120-00-001-3933
3120-00-001-3933 · Item name not on file
3120-00-001-3937
3120-00-001-3937 · Item name not on file
3120-00-001-3938
3120-00-001-3938 · Item name not on file

Frequently Asked Questions

What is NSN 3120-01-596-4978?

NSN 3120-01-596-4978 is a Bearing,composite, manufactured by Mcmaster-Carr Supply Co, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.

What part numbers are listed for NSN 3120-01-596-4978?

NSN 3120-01-596-4978 has 1 manufacturer part number on file: 7931K85 (Mcmaster-Carr Supply Co).

What are the specifications of 7931K85?

Key specifications for 7931K85: Overall Diameter: 1.000 INCHES NOMINAL IN; Special Features: STEEL-BACKED PTFE COMPOSITE BEARING FOR 7/8 INCH SHAFT DIA, 1.000 INCH OD, 7/8 INCH LG IN; Part Name Assigned by Controlling Agency: BEARING,COMPOSITE; End Item Identification: 2355-01-539-3589;LIGHT ARMORED VEHICLE. 1 specification is documented in the U.S. Government catalog.

Is NSN 3120-01-596-4978 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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