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Technical Data Sheet
PartsTable / COMPONENT / 255161
255161 ✓ 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

FILLER NECK,VEHICULAR COMPONENTS. Key specifications include material: STEEL BODY, surface_treatment: PASSIVATE BODY, maximum_operating_temp: 275.0 FAHRENHEIT DEGF, quick_disconnect_method: PUSH-PULL, quick_disconnect_nominal_size: 1.000 INCHES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-145-7079, 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
255161
NSN: 5306-00-145-7079
FSC: 5306
CAGE: 99167 — HAMILTON SUNDSTRAND CORPORATION (USA)
SPECIFICATIONS
materialSTEEL BODY
surface_treatmentPASSIVATE BODY
maximum_operating_temp275.0 FAHRENHEIT DEGF
quick_disconnect_methodPUSH-PULL
quick_disconnect_nominal_size1.000 INCHES IN
NSN5306-00-145-7079
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 255161 · 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
•
WIDTH BETWEEN FLATS: 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD LENGTH: 0.499 INCHES MINIMUM IN
•
GRIP LENGTH: 1.250 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
MINIMUM TENSILE STRENGTH: 125000 POUNDS PER SQUARE INCH LBS
•
HOLE TYPE: DRILLED
•
FEATURES PROVIDED: FINISHED HEAD
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH BETWEEN FLATS0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.499 INCHES MINIMUM IN
GRIP LENGTH1.250 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH LBS
HOLE TYPEDRILLED
FEATURES PROVIDEDFINISHED HEAD
HOLE QUANTITY6
MATERIALSTEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4037 OR STEEL COMP 4140 OR STEEL COMP 4130 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
255161Interchangeable
interchangeable cross-reference
interchangeable
4S94523-101AInterchangeable
interchangeable cross-reference
interchangeable
25516Interchangeable
interchangeable cross-reference
interchangeable
MS20074-03-16Interchangeable
Same NIIN cross-reference
interchangeable
3X164601Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 255161?
255161 is a FILLER NECK,VEHICULAR COMPONENTS.
What parts can replace 255161?
There are 5 known substitutes for 255161: 255161, 4S94523-101A, 25516 and 2 more. Substitute compatibility should be verified for your specific system.
Is 255161 still available?
255161 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