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253872 PC 13 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

253872 PC 13: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 400 OVERALL, thread_class: 2A A, fastener_length: 2.750 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, nominal_thread_diameter: 0.875 INCHES IN, thread_series_designator: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5306-01-470-3072, 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
253872 PC 13
NSN: 5306-01-470-3072
FSC: 5306 — Bolts
CAGE: 76364 — MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400 OVERALL
thread_class2A A
fastener_length2.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND
nominal_thread_diameter0.875 INCHES IN
thread_quantity_per_inch9
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
material_document_and_classificationQQ-N-281,CLASSA FED SPEC 1ST MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
NSN5306-01-470-3072
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 253872 PC 13 · 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
•
FASTENER LENGTH: 2.750 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281,CLASSA FED SPEC 1ST MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.875 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 2A A
•
THREAD QUANTITY PER INCH: 9
•
MATERIAL: NICKEL ALLOY 400 OVERALL
TECHNICAL CHARACTERISTICS
FASTENER LENGTH2.750 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CLASSA FED SPEC 1ST MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.875 INCHES IN
THREAD DIRECTIONRIGHT-HAND
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
THREAD CLASS2A A
THREAD QUANTITY PER INCH9
MATERIALNICKEL ALLOY 400 OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SUBSTITUTES & CROSS-REFERENCES 1
253872Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 253872 PC 13?
253872 PC 13 is a BOLT,MACHINE.
What parts can replace 253872 PC 13?
There is 1 known substitute for 253872 PC 13: 253872. Substitute compatibility should be verified for your specific system.
What is the NSN for 253872 PC 13?
253872 PC 13 is cataloged in the U.S. Government catalog under NSN 5306-01-470-3072. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.