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PartsTable / COMPONENT / X74222 PIECE-77 1/4 20X5/8 IN LG
X74222 PIECE-77 1/4 20X5/8 IN LG ✓ 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 X74222 PIECE-77 1/4 20X5/8 IN LG is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-135-9319, 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
X74222 PIECE-77 1/4 20X5/8 IN LG
NSN: 5305-01-135-9319
FSC: 5305
CAGE: 97370 — SPX FLOW US, LLC DBA SPX VALVES & CONTROLS (USA)
SPECIFICATIONS
Part NumberX74222 PIECE-77 1/4 20X5/8 IN LG
NSN5305-01-135-9319
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: X74222 PIECE-77 1/4 20X5/8 IN LG · 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
•
INTERNAL DRIVE STYLE: HEXAGON
•
FASTENER LENGTH: 0.625 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
THREAD QUANTITY PER INCH: 20
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL DRIVE STYLEHEXAGON
FASTENER LENGTH0.625 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH20
NOMINAL THREAD DIAMETER0.250 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
AN844-6DInterchangeable
interchangeable cross-reference
interchangeable
AS4843/2Interchangeable
interchangeable cross-reference
interchangeable
3995-1Interchangeable
interchangeable cross-reference
interchangeable
B3995-2Interchangeable
interchangeable cross-reference
interchangeable
PP6607-32Interchangeable
interchangeable cross-reference
interchangeable
17178Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is X74222 PIECE-77 1/4 20X5/8 IN LG?
X74222 PIECE-77 1/4 20X5/8 IN LG is a X74222 PIECE-77 1/4 20X5/8 IN LG.
What parts can replace X74222 PIECE-77 1/4 20X5/8 IN LG?
There are 11 known substitutes for X74222 PIECE-77 1/4 20X5/8 IN LG: AN844-6D, AS4843/2, 3995-1 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for X74222 PIECE-77 1/4 20X5/8 IN LG?
X74222 PIECE-77 1/4 20X5/8 IN LG is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-135-9319. 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