PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C9761Screw Assembly,panel

Howell Instruments, Inc. Dba Howell Instruments Inc · NSN 5305-01-189-2797 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-189-2797 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-189-2797. Primary manufacturer part number: C9761.
Features
  • Screw Assembly,panel — FSC 5305
  • Material Accommodated Thickness: 0.031 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
  • Nominal Thread Diameter: 0.138 INCHES IN
  • Thread Class: 2A A
  • Thread Direction: RIGHT-HAND
  • Minimum Tensile Strength: 140000 POUNDS PER SQUARE INCH LBS
  • Head Height: 0.077 INCHES MINIMUM AND 0.107 INCHES MAXIMUM IN
  • Head Diameter: 0.250 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw Assembly,panel, cataloged under National Stock Number 5305-01-189-2797, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Howell Instruments, Inc. Dba Howell Instruments Inc. Government technical data includes 17 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
NSN5305-01-189-2797
Primary Part NumberC9761
Item NameScrew Assembly,panel
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerHowell Instruments, Inc. Dba Howell Instruments Inc
StatusACTIVE
Material Accommodated Thickness0.031 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
Nominal Thread Diameter0.138 INCHES IN
Thread Class2A A
Thread DirectionRIGHT-HAND
Minimum Tensile Strength140000 POUNDS PER SQUARE INCH LBS
Head Height0.077 INCHES MINIMUM AND 0.107 INCHES MAXIMUM IN
Head Diameter0.250 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
Fastener Length0.271 INCHES MINIMUM AND 0.301 INCHES MAXIMUM IN
Thread Length0.188 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN
Head StylePAN
Thread Quantity Per Inch32
Surface TreatmentOXIDE OVERALL
Hardness Rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM PRIMARY WASHER
Material Document and ClassificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE STAND-OFF
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES PRIMARY WASHER
Surface Treatment Document and ClassificationMIL-C-13924,CL3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-349-12445226-1 INTERCHANGEABLE
Seal
Flexco, Inc
5330-01-346-0311 INTERCHANGEABLE
Gasket
Cross-Reference Index
Part NumberManufacturer
DCTLE7900P-6A2 Huck Intl Inc (USA)
C9761 PRIMARY Howell Instruments, Inc. Dba Howell Instruments Inc (USA)
DCTLE7900P-6A2 PRIMARY Huck International, Inc. Div Huck Products Division (USA)
Related Parts
5330-00-349-1244INTERCHANGEABLE
SEAL
5226-1
5330-01-346-0311INTERCHANGEABLE
GASKET

Frequently Asked Questions

What is NSN 5305-01-189-2797?

NSN 5305-01-189-2797 is a Screw Assembly,panel, manufactured by Howell Instruments, Inc. Dba Howell Instruments Inc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-189-2797?

NSN 5305-01-189-2797 has 3 cross-referenced part numbers: DCTLE7900P-6A2 (Huck Intl Inc), C9761 (Howell Instruments, Inc. Dba Howell Instruments Inc), DCTLE7900P-6A2 (Huck International, Inc. Div Huck Products Division).

What NSN replaces 5305-01-189-2797?

There are 2 known substitutes for 5305-01-189-2797: 5330-00-349-1244, 5330-01-346-0311. Verify interchangeability with system specifications before substitution.

What are the specifications of C9761?

Key specifications for C9761: Material Accommodated Thickness: 0.031 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.138 INCHES IN; Thread Class: 2A A; Thread Direction: RIGHT-HAND. 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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