NSN 3040-01-522-9978 · NIIN 015229978 · Part number 1L637
W.w. Grainger, Inc. Div Government Sales Division · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 25795
Government record, cited
NSN 3040-01-522-9978 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-522-9978. Manufacturer of record part number: 1L637.
Also searched as3040-01-522-9978 ·
3040015229978 ·
NIIN 015229978 ·
01-522-9978 ·
FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 25795 · 1L637
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 1L637
Manufacturer: W.w. Grainger, Inc. Div Government Sales Division
General Description
The Collar,shaft, cataloged under National Stock Number 3040-01-522-9978, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is W.w. Grainger, Inc. Div Government Sales Division. Government technical data includes 6 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.
Technical Specifications
Parameter
Value
NSN
3040-01-522-9978
Primary Part Number
1L637
Item Name
Collar,shaft
FSC / FSG
3040 / 30 — Miscellaneous Power Transmission Equipment
W.w. Grainger, Inc. Div Government Sales Division (USA)
No interchangeability data on file.
Other items in FSC 3040 — Miscellaneous Power Transmission Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3040-00-001-0046
3040-00-001-0046 · Item name not on file
3040-00-001-0047
3040-00-001-0047 · Item name not on file
3040-00-001-0048
3040-00-001-0048 · Item name not on file
3040-00-001-0068
3040-00-001-0068 · Item name not on file
3040-00-001-0077
3040-00-001-0077 · Item name not on file
3040-00-001-0078
3040-00-001-0078 · Item name not on file
3040-00-001-0089
3040-00-001-0089 · Item name not on file
3040-00-001-1224
3040-00-001-1224 · Item name not on file
Frequently Asked Questions
What is NSN 3040-01-522-9978?
NSN 3040-01-522-9978 is a Collar,shaft, manufactured by W.w. Grainger, Inc. Div Government Sales Division, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
What part numbers are listed for NSN 3040-01-522-9978?
NSN 3040-01-522-9978 has 1 manufacturer part number on file: 1L637 (W.w. Grainger, Inc. Div Government Sales Division).
What are the specifications of 1L637?
Key specifications for 1L637: Style Designator: PLAIN ROUND; Outside Diameter: 1.125 INCHES NOMINAL IN; Securing Hole Quantity: 1; End Item Identification: VAPOR CYCLE. 6 specifications are documented in the U.S. Government catalog.
Is NSN 3040-01-522-9978 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.