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Technical Data Sheet
PartsTable / COMPONENT / HL4278PC157
HL4278PC157 ✓ 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,VALVE GUARD,SPECIAL is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: STEEL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-333-1006, 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
HL4278PC157
NSN: 5305-00-333-1006
FSC: 5305
CAGE: 93236 — DRESSER-RAND CO WORTHINGTON COMPRESSOR OPN A JOINT VENTURE (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL
NSN5305-00-333-1006
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: HL4278PC157 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
5095NInterchangeable
interchangeable cross-reference
interchangeable
F3586REV2Interchangeable
interchangeable cross-reference
interchangeable
13979Interchangeable
interchangeable cross-reference
interchangeable
6515NCM020772Interchangeable
interchangeable cross-reference
interchangeable
400.368EInterchangeable
interchangeable cross-reference
interchangeable
02-1245Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HL4278PC157?
HL4278PC157 is a SCREW,VALVE GUARD,SPECIAL.
What parts can replace HL4278PC157?
There are 7 known substitutes for HL4278PC157: 5095N, F3586REV2, 13979 and 4 more. Substitute compatibility should be verified for your specific system.
Is HL4278PC157 still available?
HL4278PC157 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026