PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8721Screw,shoulder

Circor Aerospace, Inc. Div Circor · NSN 5305-00-738-0716 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-738-0716 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-738-0716. Primary manufacturer part number: 8721.
Features
  • Screw,shoulder — FSC 5305
  • Shoulder Shape: ROUND FIRST SHOULDER
  • Shoulder Length: 0.025 INCHES NOMINAL FIRST SHOULDER IN
  • Material: STEEL OVERALL
  • Surface Treatment: CADMIUM OVERALL
  • Thread Direction: RIGHT-HAND
  • Head Style: FLAT CHAMFER
  • Head Height: 0.160 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,shoulder, cataloged under National Stock Number 5305-00-738-0716, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Circor Aerospace, Inc. Div Circor. Government technical data includes 16 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
NSN5305-00-738-0716
Primary Part Number8721
Item NameScrew,shoulder
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerCircor Aerospace, Inc. Div Circor
StatusACTIVE
Shoulder ShapeROUND FIRST SHOULDER
Shoulder Length0.025 INCHES NOMINAL FIRST SHOULDER IN
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM OVERALL
Thread DirectionRIGHT-HAND
Head StyleFLAT CHAMFER
Head Height0.160 INCHES NOMINAL IN
Thread Length0.215 INCHES NOMINAL IN
Fastener Length0.400 INCHES NOMINAL IN
Nominal Thread Diameter0.138 INCHES IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Class3A A
Head Diameter0.312 INCHES NOMINAL IN
Shoulder Diameter0.230 INCHES NOMINAL FIRST SHOULDER IN
Thread Quantity Per Inch32
Internal Drive StyleSLOT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-151-95608721 INTERCHANGEABLE
Bearing,roller,tapered
Eaton Corporation Dba Airflex Div Div Airflex
4820-00-238-6473 INTERCHANGEABLE
Valve,safety Relief
5935-00-259-44158721 INTERCHANGEABLE
Connector,receptacle,electrical
Western Union Telegraph Co Sub of Western Union Corp
4730-00-326-2443 INTERCHANGEABLE
Restrictor Unit,fluid Flow
5360-00-446-8827D15-792JPC607 INTERCHANGEABLE
Spring,helical,compression
Northrop Grumman Systems Corporation Div Marine Systems
5975-00-925-9314 INTERCHANGEABLE
Box Connector,electrical
5895-01-101-62988721 INTERCHANGEABLE
Divider,power,radio Frequency
Marc Alan Group the, Inc
5360-01-111-791175-LM INTERCHANGEABLE
Spring,helical,compression
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
5930-01-114-70598721 INTERCHANGEABLE
Switch,rotary
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
5120-01-128-30567907108-00 INTERCHANGEABLE
Alignment Tool,electronic Equipm
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
Cross-Reference Index
Part NumberManufacturer
8721 Goodrich Corp Dba Goodrich Corp (USA)
8721 PRIMARY Circor Aerospace, Inc. Div Circor (USA)
Related Parts
3110-00-151-9560INTERCHANGEABLE
BEARING,ROLLER,TAPERED
8721
4820-00-238-6473INTERCHANGEABLE
VALVE,SAFETY RELIEF
5935-00-259-4415INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
8721
4730-00-326-2443INTERCHANGEABLE
RESTRICTOR UNIT,FLUID FLOW
5360-00-446-8827INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
D15-792JPC607
5975-00-925-9314INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5895-01-101-6298INTERCHANGEABLE
DIVIDER,POWER,RADIO FREQUENCY
8721
5360-01-111-7911INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
75-LM
5930-01-114-7059INTERCHANGEABLE
SWITCH,ROTARY
8721
5120-01-128-3056INTERCHANGEABLE
ALIGNMENT TOOL,ELECTRONIC EQUIPM
7907108-00
4820-01-131-5917INTERCHANGEABLE
VALVE,SAFETY RELIEF
E8721KM51M
4820-01-278-5587INTERCHANGEABLE
STEM,FLUID VALVE
8721

Frequently Asked Questions

What is NSN 5305-00-738-0716?

NSN 5305-00-738-0716 is a Screw,shoulder, manufactured by Circor Aerospace, Inc. Div Circor, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-738-0716?

NSN 5305-00-738-0716 has 2 cross-referenced part numbers: 8721 (Goodrich Corp Dba Goodrich Corp), 8721 (Circor Aerospace, Inc. Div Circor).

What NSN replaces 5305-00-738-0716?

There are 12 known substitutes for 5305-00-738-0716: 3110-00-151-9560, 4820-00-238-6473, 5935-00-259-4415 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8721?

Key specifications for 8721: Shoulder Shape: ROUND FIRST SHOULDER; Shoulder Length: 0.025 INCHES NOMINAL FIRST SHOULDER IN; Material: STEEL OVERALL; Surface Treatment: CADMIUM OVERALL. 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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