PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

23621Screw,shoulder

B E Aerospace Inc Services Div · NSN 5305-00-536-6770 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-536-6770 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-536-6770. Primary manufacturer part number: 23621.
Features
  • Screw,shoulder — FSC 5305
  • Thread Quantity Per Inch: 32
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Nominal Thread Diameter: 0.138 INCHES IN
  • Shoulder Length: 0.063 INCHES MINIMUM AND 0.066 INCHES MAXIMUM FIRST SHOULDER IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Shoulder Shape: ROUND FIRST SHOULDER
  • Internal Drive Style: SLOT
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 302 or Steel Comp 316 Overall construction
General Description

The Screw,shoulder, cataloged under National Stock Number 5305-00-536-6770, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is B E Aerospace Inc Services Div. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-536-6770
Primary Part Number23621
Item NameScrew,shoulder
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerB E Aerospace Inc Services Div
StatusACTIVE
Thread Quantity Per Inch32
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Nominal Thread Diameter0.138 INCHES IN
Shoulder Length0.063 INCHES MINIMUM AND 0.066 INCHES MAXIMUM FIRST SHOULDER IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Shoulder ShapeROUND FIRST SHOULDER
Internal Drive StyleSLOT
MaterialSTEEL COMP 302 OR STEEL COMP 316 OVERALL
Surface TreatmentPASSIVATE OVERALL
Thread Length0.132 INCHES MINIMUM IN
Thread DirectionRIGHT-HAND
Fastener Length0.257 INCHES NOMINAL IN
Head Height0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
Head Diameter0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
Head StylePAN NO. 2
Thread Class2A A
Shoulder Diameter0.177 INCHES MINIMUM AND 0.179 INCHES MAXIMUM FIRST SHOULDER IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4930-00-138-211423621 INTERCHANGEABLE
Collar,nozzle
Eaton Corporation Dba Eaton Inoac
4820-00-446-34092-362-1 INTERCHANGEABLE
Valve,check
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
2815-00-920-698119614600 INTERCHANGEABLE
Housing,rocker Arm
Cummins Inc.
3110-00-980-121323621 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
5998-01-110-8706 INTERCHANGEABLE
Circuit Card Assembly
5935-01-218-396723621 INTERCHANGEABLE
Plate,retaining,electrical Conne
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
6515-01-519-495223621 INTERCHANGEABLE
Tip,ear,tympanometer
Welch Allyn, Inc.
4730-01-594-975323621 INTERCHANGEABLE
Spool Piece
Parker Hannifin Corporation Div Hydraulic Systems Division
5330-01-699-6107HX-686F 23-621 INTERCHANGEABLE
Gasket
DC Fabricators Inc
Cross-Reference Index
Part NumberManufacturer
23621 PRIMARY B E Aerospace Inc Services Div (USA)
Related Parts
4930-00-138-2114INTERCHANGEABLE
COLLAR,NOZZLE
23621
4820-00-446-3409INTERCHANGEABLE
VALVE,CHECK
2-362-1
2815-00-920-6981INTERCHANGEABLE
HOUSING,ROCKER ARM
19614600
3110-00-980-1213INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
23621
5998-01-110-8706INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5935-01-218-3967INTERCHANGEABLE
PLATE,RETAINING,ELECTRICAL CONNE
23621
6515-01-519-4952INTERCHANGEABLE
TIP,EAR,TYMPANOMETER
23621
4730-01-594-9753INTERCHANGEABLE
SPOOL PIECE
23621
5330-01-699-6107INTERCHANGEABLE
GASKET
HX-686F 23-621

Frequently Asked Questions

What is NSN 5305-00-536-6770?

NSN 5305-00-536-6770 is a Screw,shoulder, manufactured by B E Aerospace Inc Services Div, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-536-6770?

NSN 5305-00-536-6770 has 1 cross-referenced part number: 23621 (B E Aerospace Inc Services Div).

What NSN replaces 5305-00-536-6770?

There are 9 known substitutes for 5305-00-536-6770: 4930-00-138-2114, 4820-00-446-3409, 2815-00-920-6981 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 23621?

Key specifications for 23621: Thread Quantity Per Inch: 32; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Special Features: THD RELIEVED GROOVE; Nominal Thread Diameter: 0.138 INCHES IN. 19 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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