PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

13987Screw,machine

L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division · NSN 5305-00-507-9281 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-507-9281 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-507-9281. Primary manufacturer part number: 13987.
Features
  • Screw,machine — FSC 5305
  • Screw Material Document and Classification: QQ-S-689 FED SPEC SINGLE MATERIAL RESPONSE
  • Head Height: 0.087 INCHES NOMINAL IN
  • Extended Washer Thickness: 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
  • Screw Surface Treatment: CADMIUM OR ZINC
  • Head Diameter: 0.312 INCHES NOMINAL IN
  • Thread Class: 3A A
  • Head Style: ROUND EXTENDED WASHER
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-507-9281, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-507-9281
Primary Part Number13987
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerL3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division
StatusACTIVE
Screw Material Document and ClassificationQQ-S-689 FED SPEC SINGLE MATERIAL RESPONSE
Head Height0.087 INCHES NOMINAL IN
Extended Washer Thickness0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
Screw Surface TreatmentCADMIUM OR ZINC
Head Diameter0.312 INCHES NOMINAL IN
Thread Class3A A
Head StyleROUND EXTENDED WASHER
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Fastener Length0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
Screw MaterialSTEEL COMP 2330
Minimum Tensile Strength125000 POUNDS PER SQUARE INCH LBS
Departure From Cited DesignatorAS MOD BY SURFACE TREATMENT
Nominal Thread Diameter0.164 INCHES IN
Extended Washer Diameter0.375 INCHES NOMINAL IN
Thread Length0.313 INCHES MINIMUM IN
Thread Quantity Per Inch32
Internal Drive StyleSLOT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-036-156413987 INTERCHANGEABLE
Seat,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4730-00-842-7880 INTERCHANGEABLE
Elbow,pipe
5365-00-964-040113987 INTERCHANGEABLE
Spring Retainer
Drs C3 & Aviation Company Dba Drs Data & Imaging Systems
7930-01-112-351513987 INTERCHANGEABLE
Dishwashing Compound,machine
Ecolab Inc
4820-01-136-383614020-H-33011 INTERCHANGEABLE
Seat,valve
Flowserve Inc
6520-01-182-463313987 INTERCHANGEABLE
Point,endodontic
Kerr Corporation
5950-01-205-4782G125737-1 INTERCHANGEABLE
Reactor
Raytheon Company Dba Raytheon Co
6210-01-271-752213987 INTERCHANGEABLE
Filter,indicator Light
Aerosonic Llc
4720-01-353-29513010606-6-6-6-14.00 INTERCHANGEABLE
Hose Assembly,nonmetallic
Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division
5985-01-360-905013987 INTERCHANGEABLE
Case,antenna
General Dynamics Mission Systems, Inc.
Cross-Reference Index
Part NumberManufacturer
13987 L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division (USA)
AN525-832-8 Aeronautical Standards Group Dept of Navy and Air Force (USA)
Related Parts
4820-00-036-1564INTERCHANGEABLE
SEAT,VALVE
13987
4730-00-842-7880INTERCHANGEABLE
ELBOW,PIPE
5365-00-964-0401INTERCHANGEABLE
SPRING RETAINER
13987
7930-01-112-3515INTERCHANGEABLE
DISHWASHING COMPOUND,MACHINE
13987
4820-01-136-3836INTERCHANGEABLE
SEAT,VALVE
14020-H-33011
6520-01-182-4633INTERCHANGEABLE
POINT,ENDODONTIC
13987
5950-01-205-4782INTERCHANGEABLE
REACTOR
G125737-1
6210-01-271-7522INTERCHANGEABLE
FILTER,INDICATOR LIGHT
13987
4720-01-353-2951INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
3010606-6-6-6-14.00
5985-01-360-9050INTERCHANGEABLE
CASE,ANTENNA
13987
5342-01-414-3095INTERCHANGEABLE
DOOR,ACCESS,WEAPON SYSTEM
1398-7
3020-01-523-7205INTERCHANGEABLE
GEAR,HELICAL
13987

Frequently Asked Questions

What is NSN 5305-00-507-9281?

NSN 5305-00-507-9281 is a Screw,machine, manufactured by L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-507-9281?

NSN 5305-00-507-9281 has 2 cross-referenced part numbers: 13987 (L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division), AN525-832-8 (Aeronautical Standards Group Dept of Navy and Air Force).

What NSN replaces 5305-00-507-9281?

There are 12 known substitutes for 5305-00-507-9281: 4820-00-036-1564, 4730-00-842-7880, 5365-00-964-0401 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 13987?

Key specifications for 13987: Screw Material Document and Classification: QQ-S-689 FED SPEC SINGLE MATERIAL RESPONSE; Head Height: 0.087 INCHES NOMINAL IN; Extended Washer Thickness: 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN; Screw Surface Treatment: CADMIUM OR ZINC. 18 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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