PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 1187/4
1187/4 ✓ 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 1187/4 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 5306-01-310-5819, 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
1187/4
NSN: 5306-01-310-5819
FSC: 5306
CAGE: 30076 — HYSTER-YALE GROUP, INC. (USA)
SPECIFICATIONS
Part Number1187/4
NSN5306-01-310-5819
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1187/4 · 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
•
DISTANCE FROM CENTERLINE TO FLAT: 0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
•
HEAD STYLE: DEE
•
SHOULDER LENGTH: 0.688 INCHES MINIMUM AND 0.875 INCHES MAXIMUM FIRST SHOULDER IN
•
MATERIAL: STEEL COMP 4427 OR STEEL COMP 8622 OVERALL
•
THREAD SERIES DESIGNATOR: UNF
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
SHOULDER DIAMETER: 0.6245 INCHES MINIMUM AND 0.6255 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD QUANTITY PER INCH: 18
TECHNICAL CHARACTERISTICS (FLIS)
DISTANCE FROM CENTERLINE TO FLAT0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
HEAD STYLEDEE
SHOULDER LENGTH0.688 INCHES MINIMUM AND 0.875 INCHES MAXIMUM FIRST SHOULDER IN
MATERIALSTEEL COMP 4427 OR STEEL COMP 8622 OVERALL
THREAD SERIES DESIGNATORUNF
SHOULDER SHAPEROUND FIRST SHOULDER
SHOULDER DIAMETER0.6245 INCHES MINIMUM AND 0.6255 INCHES MAXIMUM FIRST SHOULDER IN
THREAD QUANTITY PER INCH18
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.562 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
11874Interchangeable
interchangeable cross-reference
interchangeable
38036Interchangeable
interchangeable cross-reference
interchangeable
75036Interchangeable
interchangeable cross-reference
interchangeable
MS1TInterchangeable
interchangeable cross-reference
interchangeable
189448Interchangeable
interchangeable cross-reference
interchangeable
IAU1004Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1187/4?
1187/4 is a 1187/4.
What parts can replace 1187/4?
There are 8 known substitutes for 1187/4: 11874, 38036, 75036 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1187/4?
1187/4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-310-5819. 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