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PartsTable / COMPONENT / 51303PC22
51303PC22 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT CHAMFER, head_height: 0.125 INCHES NOMINAL IN, head_diameter: 0.250 INCHES NOMINAL IN, thread_length: 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN, screw_material: COPPER ALLOY 482, fastener_length: 0.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-174-3926, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
51303PC22
NSN: 5305-00-174-3926
FSC: 5305
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
head_styleFLAT CHAMFER
head_height0.125 INCHES NOMINAL IN
head_diameter0.250 INCHES NOMINAL IN
thread_length0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
screw_materialCOPPER ALLOY 482
fastener_length0.375 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.156 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUNS
screw_material_document_and_classificationQQ-B-637,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-639,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE
NSN5305-00-174-3926
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 51303PC22 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD QUANTITY PER INCH: 32
•
HEAD DIAMETER: 0.250 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.125 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD SERIES DESIGNATOR: UNS
•
INTERNAL DRIVE STYLE: SLOT
•
THREAD LENGTH: 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
•
SCREW MATERIAL: COPPER ALLOY 482
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH32
HEAD DIAMETER0.250 INCHES NOMINAL IN
HEAD HEIGHT0.125 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNS
INTERNAL DRIVE STYLESLOT
THREAD LENGTH0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
SCREW MATERIALCOPPER ALLOY 482
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-637,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-639,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE
NOMINAL THREAD DIAMETER0.156 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
C1UU8100AInterchangeable
interchangeable cross-reference
interchangeable
SP12Interchangeable
interchangeable cross-reference
interchangeable
AAX0768Interchangeable
interchangeable cross-reference
interchangeable
SP2-1Interchangeable
interchangeable cross-reference
interchangeable
65A5A69-21431BInterchangeable
interchangeable cross-reference
interchangeable
677-1683-000Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51303PC22?
51303PC22 is a SCREW,MACHINE.
What parts can replace 51303PC22?
There are 15 known substitutes for 51303PC22: C1UU8100A, SP12, AAX0768 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 51303PC22?
51303PC22 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-174-3926. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026