NSN 5340-01-504-1985 · NIIN 015041985 · Part number 145SK255-4
The Boeing Company · FSC 5340 — Hardware, Commercial · FSG 53 — Hardware and Abrasives · CAGE 77272
Government record, cited
NSN 5340-01-504-1985 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-504-1985. Manufacturer of record part number: 145SK255-4.
Material Document and Classification: SAE-AMS-QQ-A-250 ASSN STD ALL MATERIAL RESPONSES
Material: ALUMINUM ALLOY 2025
Mounting Hole Type: PLAIN
1 manufacturer part number on file
Manufacturer of record: The Boeing Company
Identification
NSN: 5340-01-504-1985
NIIN: 015041985
FSC: 5340 — Hardware, Commercial
FSG: 53 — Hardware and Abrasives
Primary part number: 145SK255-4
Manufacturer: The Boeing Company
General Description
The Bracket,mounting, cataloged under National Stock Number 5340-01-504-1985, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
Technical Specifications
Parameter
Value
NSN
5340-01-504-1985
Primary Part Number
145SK255-4
Item Name
Bracket,mounting
FSC / FSG
5340 / 53 — Hardware, Commercial
Manufacturer
The Boeing Company
Status
ACTIVE
Mounting Hole Quantity
10
Material Document and Classification
SAE-AMS-QQ-A-250 ASSN STD ALL MATERIAL RESPONSES
Material
ALUMINUM ALLOY 2025
Mounting Hole Type
PLAIN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code
X
Unit of Issue
EA
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5340-01-504-2023145SK255-5POSSIBLE MATCH
CLIP,SPRING TENSION
Possible match (shared part number)The Boeing Company
5340-01-504-2031145SK255-8POSSIBLE MATCH
CLIP,SPRING TENSION
Possible match (shared part number)The Boeing Company
5340-01-504-2039145SK255-7POSSIBLE MATCH
BRACKET,MOUNTING
Possible match (shared part number)The Boeing Company
5340-01-504-4200145SK255-10POSSIBLE MATCH
CLIP,SPRING TENSION
Possible match (shared part number)The Boeing Company
5340-01-504-6431145SK255-6POSSIBLE MATCH
CLIP,SPRING TENSION
Possible match (shared part number)The Boeing Company
5340-01-504-6432145SK255-11POSSIBLE MATCH
CLIP,SPRING TENSION
Possible match (shared part number)The Boeing Company
NSN 5340-01-504-1985 is a Bracket,mounting, manufactured by The Boeing Company, classified under FSC 5340, Hardware, Commercial. Status: active.
What part numbers are listed for NSN 5340-01-504-1985?
NSN 5340-01-504-1985 has 1 manufacturer part number on file: 145SK255-4 (The Boeing Company).
What NSN replaces 5340-01-504-1985?
6 possible matches (shared part number, not a government interchangeability claim): 5340-01-504-2023, 5340-01-504-2031, 5340-01-504-2039. Verify interchangeability with system specifications before substitution.
What are the specifications of 145SK255-4?
Key specifications for 145SK255-4: Mounting Hole Quantity: 10; Overall Height: 2.000 INCHES NOMINAL IN; Material Document and Classification: SAE-AMS-QQ-A-250 ASSN STD ALL MATERIAL RESPONSES; Overall Length: 3.700 INCHES NOMINAL IN. 4 specifications are documented in the U.S. Government catalog.
Is NSN 5340-01-504-1985 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.