PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8401Standoff,threaded,spacing

Keystone Electronics Corp · NSN 5340-01-530-3949 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-530-3949 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-530-3949. Primary manufacturer part number: 8401.
Features
  • Standoff,threaded,spacing — FSC 5340
  • Cross-Sectional Shape: HEXAGON
  • Material Document and Classification: QQ-Q253/A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Right Projection Length: 0.187 INCHES NOMINAL IN
  • Material: ALUMINUM OVERALL
  • Style Designator: LEFT INTERNAL AND RIGHT EXTERNAL THREAD
  • Width Across Flats: 0.250 INCHES NOMINAL IN
  • Length: 0.500 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Overall construction
General Description

The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-530-3949, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Keystone Electronics Corp. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-530-3949
Primary Part Number8401
Item NameStandoff,threaded,spacing
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerKeystone Electronics Corp
StatusACTIVE
Cross-Sectional ShapeHEXAGON
Material Document and ClassificationQQ-Q253/A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Right Projection Length0.187 INCHES NOMINAL IN
MaterialALUMINUM OVERALL
Style DesignatorLEFT INTERNAL AND RIGHT EXTERNAL THREAD
Width Across Flats0.250 INCHES NOMINAL IN
Length0.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 10
5935-00-027-95471825 INTERCHANGEABLE
Plug,tip
Fluke Electronics Corp
5985-00-087-19348401 INTERCHANGEABLE
Cushion
Armed Forces Equip Development Co C/o Falling Creek Metal Products
3030-00-264-306030275A INTERCHANGEABLE
Belt,v
Brinkley Technology Group Llc Dba Hercules Manufacturing
6145-00-548-09398401 INTERCHANGEABLE
Cable,special Purpose,electrical
Belden Wire and Cable Co Wire and Cable Office
5985-01-032-43718401 INTERCHANGEABLE
Dummy Load,electrical
Bird Electronic Corporation Div Bird Electronic Corp
4920-01-234-90898401A INTERCHANGEABLE
Test Set,indicator
Hydraulic Technology, Inc
4820-01-281-74258401 INTERCHANGEABLE
Seat Assembly,valve
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
5365-01-284-7807840100 INTERCHANGEABLE
Ring
Alfa Laval Inc
5805-01-310-7312SWLR-PB-FG2S INTERCHANGEABLE
Telephone Set
Hose-Mccann Telephone Co, Inc
5340-01-629-9334840-1 INTERCHANGEABLE
Pad,cushioning
Hd Supply Construction Supply Group, Inc.
Cross-Reference Index
Part NumberManufacturer
8401 PRIMARY Keystone Electronics Corp (USA)
Related Parts
5935-00-027-9547INTERCHANGEABLE
PLUG,TIP
1825
5985-00-087-1934INTERCHANGEABLE
CUSHION
8401
3030-00-264-3060INTERCHANGEABLE
BELT,V
30275A
6145-00-548-0939INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
8401
5985-01-032-4371INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
8401
4920-01-234-9089INTERCHANGEABLE
TEST SET,INDICATOR
8401A
4820-01-281-7425INTERCHANGEABLE
SEAT ASSEMBLY,VALVE
8401
5365-01-284-7807INTERCHANGEABLE
RING
840100
5805-01-310-7312INTERCHANGEABLE
TELEPHONE SET
SWLR-PB-FG2S
5340-01-629-9334INTERCHANGEABLE
PAD,CUSHIONING
840-1

Frequently Asked Questions

What is NSN 5340-01-530-3949?

NSN 5340-01-530-3949 is a Standoff,threaded,spacing, manufactured by Keystone Electronics Corp, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-530-3949?

NSN 5340-01-530-3949 has 1 cross-referenced part number: 8401 (Keystone Electronics Corp).

What NSN replaces 5340-01-530-3949?

There are 10 known substitutes for 5340-01-530-3949: 5935-00-027-9547, 5985-00-087-1934, 3030-00-264-3060 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8401?

Key specifications for 8401: Cross-Sectional Shape: HEXAGON; Material Document and Classification: QQ-Q253/A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Right Projection Length: 0.187 INCHES NOMINAL IN; Material: ALUMINUM OVERALL. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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