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Technical Data Sheet
PartsTable / COMPONENT / 181370
181370 ✓ 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 BOLT,FLUID PASSAGE is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: BOLT, 3/8-24. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-018-1370, 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
181370
NSN: 5305-00-018-1370
FSC: 5305
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyBOLT, 3/8-24
NSN5305-00-018-1370
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 181370 · 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: 1.250 INCHES NOMINAL IN
•
THREAD CLASS: 2A A
•
HEAD STYLE: HEXAGON
•
HARDNESS RATING: 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL: STEEL OVERALL
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 10P STYLE AND 5 GRADE
•
THREAD SERIES DESIGNATOR: UNF
•
THREAD LENGTH: 1.000 INCHES MINIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
FASTENER LENGTH1.250 INCHES NOMINAL IN
THREAD CLASS2A A
HEAD STYLEHEXAGON
HARDNESS RATING23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
MATERIALSTEEL OVERALL
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 10P STYLE AND 5 GRADE
THREAD SERIES DESIGNATORUNF
THREAD LENGTH1.000 INCHES MINIMUM IN
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH24
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
S1-6Interchangeable
interchangeable cross-reference
interchangeable
S1-6-10Interchangeable
interchangeable cross-reference
interchangeable
907821Interchangeable
interchangeable cross-reference
interchangeable
S000069Interchangeable
interchangeable cross-reference
interchangeable
91248A626Interchangeable
interchangeable cross-reference
interchangeable
18-1370Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 181370?
181370 is a BOLT,FLUID PASSAGE.
What parts can replace 181370?
There are 13 known substitutes for 181370: S1-6, S1-6-10, 907821 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 181370?
181370 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-018-1370. 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