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PartsTable / COMPONENT / H108
H108 ✓ 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 ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8740 OR STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 4130 OVERALL, nut_style: HEXAGON, body_width: 2.500 INCHES NOMINAL IN, head_style: HEXAGON, nut_height: 0.328 INCHES NOMINAL IN, body_height: 2.530 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-188-0776, 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
H108
NSN: 5305-00-188-0776
FSC: 5305
CAGE: 98587 — IMS ENGINEERED PRODUCTS LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 8740 OR STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 4130 OVERALL
nut_styleHEXAGON
body_width2.500 INCHES NOMINAL IN
head_styleHEXAGON
nut_height0.328 INCHES NOMINAL IN
body_height2.530 INCHES NOMINAL IN
body_length2.880 INCHES NOMINAL IN
head_height0.187 INCHES NOMINAL IN
lubricationDRY FILM LUBRICANT
temp_rating450.0 FAHRENHEIT MAXIMUM DEGF
thread_class3B
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
NSN5305-00-188-0776
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: H108 · 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: 0.437 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
FASTENER LENGTH: 0.500 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.187 INCHES NOMINAL IN
•
THREAD LENGTH: 0.400 INCHES MINIMUM IN
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 3,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH BETWEEN FLATS0.437 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH0.500 INCHES NOMINAL IN
HEAD HEIGHT0.187 INCHES NOMINAL IN
THREAD LENGTH0.400 INCHES MINIMUM IN
MATERIALSTEEL OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 3,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SPECIAL FEATURESHEAD INDENTED
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
GN10U820Interchangeable
interchangeable cross-reference
interchangeable
H10E8GNInterchangeable
interchangeable cross-reference
interchangeable
H10-8Interchangeable
interchangeable cross-reference
interchangeable
2274194Interchangeable
interchangeable cross-reference
interchangeable
8516776-1Interchangeable
interchangeable cross-reference
interchangeable
2BE285Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H108?
H108 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace H108?
There are 8 known substitutes for H108: GN10U820, H10E8GN, H10-8 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H108?
H108 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-188-0776. 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