PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1251-5547Contact Assembly,electrical

Keysight Technologies Inc · NSN 5999-01-187-6179 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-187-6179 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-187-6179. Primary manufacturer part number: 1251-5547.
Features
  • Contact Assembly,electrical — FSC 5999
  • Precious Material and Location: CONTACT SURFACES GOLD
  • Structural Design: NONSWITCHING
  • Precious Material: GOLD
  • Terminal Type: PIN
  • Precious Material and Weight: 0.030 GOLD GRAINS, TROY
  • Contact Quantity: 6
  • Precious Material and Location: CONTACT SURFACES GOLD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Contact Assembly,electrical, cataloged under National Stock Number 5999-01-187-6179, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Keysight Technologies Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-187-6179
Primary Part Number1251-5547
Item NameContact Assembly,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerKeysight Technologies Inc
StatusACTIVE
Precious Material and LocationCONTACT SURFACES GOLD
Structural DesignNONSWITCHING
Precious MaterialGOLD
Terminal TypePIN
Precious Material and Weight0.030 GOLD GRAINS, TROY
Contact Quantity6
Precious Material and LocationCONTACT SURFACES GOLD
Structural DesignNONSWITCHING
Precious MaterialGOLD
Terminal TypePIN
Precious Material and Weight0.030 GOLD GRAINS, TROY
Contact Quantity6
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Weight0.0200 lbs
Cube0.0009 cu ft
Verified Substitutes 2
6655-00-129-9738SP430 INTERCHANGEABLE
Bag,intrusion Detec
Spencer Industries Inc
2915-00-850-7442405691 INTERCHANGEABLE
Adapter,base Assy
Woodward, Inc. Div Fuel Systems and Controls
Cross-Reference Index
Part NumberManufacturer
405691 American Telephone and Telegraph Co (USA)
1251-5547 PRIMARY Keysight Technologies Inc (USA)
65521-106 Fci Usa, Inc Dba Fci Usa Llc Div Fci Usa Llc (USA)
1251-5547 Keysight Technologies, Inc. (USA)
1251-5547 Hewlett-Packard Company Dba HP (USA)
Related Parts
6655-00-129-9738INTERCHANGEABLE
BAG,INTRUSION DETEC
SP430
2915-00-850-7442INTERCHANGEABLE
ADAPTER,BASE ASSY
405691

Frequently Asked Questions

What is NSN 5999-01-187-6179?

NSN 5999-01-187-6179 is a Contact Assembly,electrical, manufactured by Keysight Technologies Inc, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-187-6179?

NSN 5999-01-187-6179 has 5 cross-referenced part numbers: 405691 (American Telephone and Telegraph Co), 1251-5547 (Keysight Technologies Inc), 65521-106 (Fci Usa, Inc Dba Fci Usa Llc Div Fci Usa Llc), 1251-5547 (Keysight Technologies, Inc.), 1251-5547 (Hewlett-Packard Company Dba HP).

What NSN replaces 5999-01-187-6179?

There are 2 known substitutes for 5999-01-187-6179: 6655-00-129-9738, 2915-00-850-7442. Verify interchangeability with system specifications before substitution.

What are the specifications of 1251-5547?

Key specifications for 1251-5547: Overall Length: 0.600 INCHES MAXIMUM IN; Precious Material and Location: CONTACT SURFACES GOLD; Structural Design: NONSWITCHING; Precious Material: GOLD. 16 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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