PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10549Screw,cap,socket Head

Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group · NSN 5305-01-121-8426 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-121-8426 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-121-8426. Primary manufacturer part number: 10549.
Features
  • Screw,cap,socket Head — FSC 5305
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Fastener Length: 5.500 INCHES NOMINAL IN
  • Minimum Yield Strength: 153000 POUNDS PER SQUARE INCH LBS
  • Hardness Rating: 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
  • Thread Direction: RIGHT-HAND
  • Material: STEEL COMP 4140 OR STEEL COMP 4037 OVERALL
  • Thread Quantity Per Inch: 9
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 4140 or Steel Comp 4037 Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-121-8426, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group. Government technical data includes 10 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
NSN5305-01-121-8426
Primary Part Number10549
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerGardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
StatusACTIVE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Fastener Length5.500 INCHES NOMINAL IN
Minimum Yield Strength153000 POUNDS PER SQUARE INCH LBS
Hardness Rating39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
Thread DirectionRIGHT-HAND
MaterialSTEEL COMP 4140 OR STEEL COMP 4037 OVERALL
Thread Quantity Per Inch9
Nominal Thread Diameter0.875 INCHES IN
Minimum Tensile Strength170000 POUNDS PER SQUARE INCH LBS
Thread Class3A A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-104-739327910-2 INTERCHANGEABLE
Nozzle,spray,fluid-Emulsion
Collins Engine Nozzles, Inc
5950-00-163-9319 INTERCHANGEABLE
Reactor
5305-00-206-0538 INTERCHANGEABLE
Screw,machine
9340-00-268-98311049875 INTERCHANGEABLE
Window,observation
Todd Combustion Inc
4520-00-478-5858 INTERCHANGEABLE
Heating Element,electrical,immer
5962-00-481-864225701-I-C INTERCHANGEABLE
Microcircuit,linear
Emcore Corporation Div Concord Division
5950-00-510-177225701 INTERCHANGEABLE
Reactor
Freed Transformer Co
5330-00-641-2010 INTERCHANGEABLE
Packing,preformed
5950-00-831-2825 INTERCHANGEABLE
Reactor
5915-01-142-7075A-025701 INTERCHANGEABLE
Filter,high Pass
Miller Electric Mfg. Llc
Cross-Reference Index
Part NumberManufacturer
25701 Jetstream of Houston, Llp Dba Jetstream of Houston Llp (USA)
10549 PRIMARY Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group (USA)
Related Parts
4730-00-104-7393INTERCHANGEABLE
NOZZLE,SPRAY,FLUID-EMULSION
27910-2
5950-00-163-9319INTERCHANGEABLE
REACTOR
5305-00-206-0538INTERCHANGEABLE
SCREW,MACHINE
9340-00-268-9831INTERCHANGEABLE
WINDOW,OBSERVATION
1049875
4520-00-478-5858INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,IMMER
5962-00-481-8642INTERCHANGEABLE
MICROCIRCUIT,LINEAR
25701-I-C
5950-00-510-1772INTERCHANGEABLE
REACTOR
25701
5330-00-641-2010INTERCHANGEABLE
PACKING,PREFORMED
5950-00-831-2825INTERCHANGEABLE
REACTOR
5915-01-142-7075INTERCHANGEABLE
FILTER,HIGH PASS
A-025701
5340-01-215-3921INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
5120-01-313-1250INTERCHANGEABLE
SEAL PULLER
10549

Frequently Asked Questions

What is NSN 5305-01-121-8426?

NSN 5305-01-121-8426 is a Screw,cap,socket Head, manufactured by Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-121-8426?

NSN 5305-01-121-8426 has 2 cross-referenced part numbers: 25701 (Jetstream of Houston, Llp Dba Jetstream of Houston Llp), 10549 (Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group).

What NSN replaces 5305-01-121-8426?

There are 12 known substitutes for 5305-01-121-8426: 4730-00-104-7393, 5950-00-163-9319, 5305-00-206-0538 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10549?

Key specifications for 10549: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Fastener Length: 5.500 INCHES NOMINAL IN; Minimum Yield Strength: 153000 POUNDS PER SQUARE INCH LBS; Hardness Rating: 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL. 10 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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