NSN 3120-01-577-9388 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-577-9388. Manufacturer of record part number: 4TB56.
Manufacturer of record: Lockheed Martin Corporation
Identification
NSN: 3120-01-577-9388
NIIN: 015779388
FSC: 3120 — Bearings, Plain, Unmounted
FSG: 31 — Bearings
Primary part number: 4TB56
Manufacturer: Lockheed Martin Corporation
General Description
The Bushing,sleeve, cataloged under National Stock Number 3120-01-577-9388, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Lockheed Martin Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
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 3120-01-577-9388?
NSN 3120-01-577-9388 is a Bushing,sleeve, manufactured by Lockheed Martin Corporation, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
What part numbers are listed for NSN 3120-01-577-9388?
NSN 3120-01-577-9388 has 1 manufacturer part number on file: 4TB56 (Lockheed Martin Corporation).
What are the specifications of 4TB56?
Key specifications for 4TB56: Part Name Assigned by Controlling Agency: BUSHING,SLEEVE; End Item Identification: U-2 AIRCRAFT. 0 specifications are documented in the U.S. Government catalog.
Is NSN 3120-01-577-9388 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.
What is the DEMIL code for NSN 3120-01-577-9388?
NSN 3120-01-577-9388 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.