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Technical Data Sheet
PartsTable / COMPONENT / 688-153
688-153 ✓ 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 SCREW ADJUSTING is a the manufacturer industrial component. Key specifications include material: STEEL, thread_length: 1.218 INCHES MAXIMUM NUT THREAD IN, overall_length: 3.710 INCHES MINIMUM AND 3.830 INCHES MAXIMUM IN, hardness_rating: 18.0 ROCKWELL C MINIMUM AND 28.0 ROCKWELL C MAXIMUM, shoulder_length: 0.190 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN, special_features: 0.125 IN. RADIUS BETWEEN WRENCH FLAT SHOULDER AND NUT END 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 5305-00-452-8316, 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
688-153
NSN: 5305-00-452-8316
FSC: 5305
CAGE: U4271 — ROLLS-ROYCE CONTROLS AND DATA SERVICES LIMITED (GBR)
SPECIFICATIONS
materialSTEEL
thread_length1.218 INCHES MAXIMUM NUT THREAD IN
overall_length3.710 INCHES MINIMUM AND 3.830 INCHES MAXIMUM IN
hardness_rating18.0 ROCKWELL C MINIMUM AND 28.0 ROCKWELL C MAXIMUM
shoulder_length0.190 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
special_features0.125 IN. RADIUS BETWEEN WRENCH FLAT SHOULDER AND NUT END IN
style_designatorSHOULDERED
thread_directionLEFT-HAND STUD THREAD
shoulder_diameter1.120 INCHES MINIMUM AND 1.210 INCHES MAXIMUM IN
nominal_thread_size0.750 INCHES STUD THREAD IN
nut_end_shank_length1.030 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN
distance_across_flats0.910 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN
NSN5305-00-452-8316
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 688-153 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
5305-99-606Interchangeable
interchangeable cross-reference
interchangeable
837-57Interchangeable
interchangeable cross-reference
interchangeable
837-508Interchangeable
interchangeable cross-reference
interchangeable
840-237Interchangeable
interchangeable cross-reference
interchangeable
840-434Interchangeable
interchangeable cross-reference
interchangeable
13989Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 688-153?
688-153 is a SCREW ADJUSTING.
What parts can replace 688-153?
There are 8 known substitutes for 688-153: 5305-99-606, 837-57, 837-508 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 688-153?
688-153 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-452-8316. 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