PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2487939G001Screw,externally Relieved Body

L3harris Technologies, Inc. · NSN 5305-01-195-0271 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-195-0271 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-195-0271. Primary manufacturer part number: 2487939G001.
Features
  • Screw,externally Relieved Body — FSC 5305
  • Thread Direction: RIGHT-HAND
  • Second Diameter From Head: 0.096 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN
  • Head Diameter: 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
  • Distance From Largest Bearing Surface of Head to End of Second Diameter: 0.250 INCHES NOMINAL IN
  • Head Style: PAN
  • Thread Class: 2A A
  • Internal Drive Style: CROSS RECESS TYPE 1
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-195-0271, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3harris Technologies, Inc.. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-195-0271
Primary Part Number2487939G001
Item NameScrew,externally Relieved Body
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerL3harris Technologies, Inc.
StatusACTIVE
Thread DirectionRIGHT-HAND
Second Diameter From Head0.096 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN
Head Diameter0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
Distance From Largest Bearing Surface of Head to End of Second Diameter0.250 INCHES NOMINAL IN
Head StylePAN
Thread Class2A A
Internal Drive StyleCROSS RECESS TYPE 1
Surface TreatmentPASSIVATE OVERALL
Distance From Largest Bearing Surface of Head to End of First Diameter0.099 INCHES NOMINAL IN
Thread Length0.125 INCHES NOMINAL IN
Material Document and ClassificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL CORROSION RESISTING OVERALL
First Diameter From Head0.114 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
Fastener Length0.375 INCHES NOMINAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Diameter0.138 INCHES IN
Externally Relieved Body Diameter Quantity2
Thread Quantity Per Inch32
Head Height0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5950-00-064-8976 INTERCHANGEABLE
Transformer,power
5895-01-678-011170391 INTERCHANGEABLE
Monitor,radio Frequency
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
Cross-Reference Index
Part NumberManufacturer
2487939G001 Nassau Corp (USA)
7039-1 Fastener Innovation Technology, Inc. Dba F I T (USA)
2487939G001 PRIMARY L3harris Technologies, Inc. (USA)
Related Parts
5950-00-064-8976INTERCHANGEABLE
TRANSFORMER,POWER
5895-01-678-0111INTERCHANGEABLE
MONITOR,RADIO FREQUENCY
70391

Frequently Asked Questions

What is NSN 5305-01-195-0271?

NSN 5305-01-195-0271 is a Screw,externally Relieved Body, manufactured by L3harris Technologies, Inc., classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-195-0271?

NSN 5305-01-195-0271 has 3 cross-referenced part numbers: 2487939G001 (Nassau Corp), 7039-1 (Fastener Innovation Technology, Inc. Dba F I T), 2487939G001 (L3harris Technologies, Inc.).

What NSN replaces 5305-01-195-0271?

There are 2 known substitutes for 5305-01-195-0271: 5950-00-064-8976, 5895-01-678-0111. Verify interchangeability with system specifications before substitution.

What are the specifications of 2487939G001?

Key specifications for 2487939G001: Thread Direction: RIGHT-HAND; Second Diameter From Head: 0.096 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN; Head Diameter: 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN; Distance From Largest Bearing Surface of Head to End of Second Diameter: 0.250 INCHES NOMINAL IN. 20 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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