PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16990P5C16DScrew,cap,socket Head

Sps Technologies, Llc Dba PB Fasteners · NSN 5305-00-003-6816 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-003-6816 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-003-6816. Primary manufacturer part number: 16990P5C16D.
Features
  • Screw,cap,socket Head — FSC 5305
  • Nominal Thread Diameter: 0.312 INCHES IN
  • Fastener Length: 0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
  • Thread Length: 0.675 INCHES MINIMUM AND 0.818 INCHES MAXIMUM IN
  • Thread Direction: RIGHT-HAND
  • Head Diameter: 0.600 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
  • Locking Feature: PELLET THREADS
  • Countersink Angle: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-003-6816, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-003-6816
Primary Part Number16990P5C16D
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerSps Technologies, Llc Dba PB Fasteners
StatusACTIVE
Nominal Thread Diameter0.312 INCHES IN
Fastener Length0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
Thread Length0.675 INCHES MINIMUM AND 0.818 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Head Diameter0.600 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
Locking FeaturePELLET THREADS
Countersink Angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL OVERALL
Minimum Yield Strength130000 POUNDS PER SQUARE INCH LBS
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Thread Quantity Per Inch18
Minimum Tensile Strength160000 POUNDS PER SQUARE INCH LBS
Surface Treatment Document and ClassificationQQ-P-416 TYPE 2 CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
Thread Class3A A
Internal Drive StyleHEXAGON
Head StyleFLAT COUNTERSUNK
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Hardness Rating36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5360-00-390-165130348 INTERCHANGEABLE
Spring,helical,compression
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
4930-00-884-0145 INTERCHANGEABLE
Piston,cylinder,fil
5305-01-288-114830348 INTERCHANGEABLE
Screw,machine
Moog Inc. Dba Ampac-Isp Corp
6625-01-342-079360-348 INTERCHANGEABLE
Electrical Meter Subassembly
Hipotronics Inc
Cross-Reference Index
Part NumberManufacturer
16990N5C16D Sps Technologies Inc Hallowell Div (USA)
67A247C6 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
16990P5C16D PRIMARY Sps Technologies, Llc Dba PB Fasteners (USA)
30348 Zf Industrieantriebe Witten Gmbh (DEU)
16990N5C16D Sps Technologies, Llc Dba PB Fasteners (USA)
Related Parts
5360-00-390-1651INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
30348
4930-00-884-0145INTERCHANGEABLE
PISTON,CYLINDER,FIL
5305-01-288-1148INTERCHANGEABLE
SCREW,MACHINE
30348
6625-01-342-0793INTERCHANGEABLE
ELECTRICAL METER SUBASSEMBLY
60-348

Frequently Asked Questions

What is NSN 5305-00-003-6816?

NSN 5305-00-003-6816 is a Screw,cap,socket Head, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-003-6816?

NSN 5305-00-003-6816 has 5 cross-referenced part numbers: 16990N5C16D (Sps Technologies Inc Hallowell Div), 67A247C6 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 16990P5C16D (Sps Technologies, Llc Dba PB Fasteners), 30348 (Zf Industrieantriebe Witten Gmbh), 16990N5C16D (Sps Technologies, Llc Dba PB Fasteners).

What NSN replaces 5305-00-003-6816?

There are 4 known substitutes for 5305-00-003-6816: 5360-00-390-1651, 4930-00-884-0145, 5305-01-288-1148 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16990P5C16D?

Key specifications for 16990P5C16D: Nominal Thread Diameter: 0.312 INCHES IN; Fastener Length: 0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN; Thread Length: 0.675 INCHES MINIMUM AND 0.818 INCHES MAXIMUM IN; 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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