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PartsTable / COMPONENT / 6118-SS-2528-7
6118-SS-2528-7 ✓ 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,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, head_style: KNURLED NO. 4, head_height: 0.546 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN, thread_length: 0.303 INCHES MINIMUM AND 0.313 INCHES MAXIMUM 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 5305-01-025-4789, 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
6118-SS-2528-7
NSN: 5305-01-025-4789
FSC: 5305
CAGE: 06540 — NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
head_styleKNURLED NO. 4
head_height0.546 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
thread_length0.303 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
fastener_length1.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
internal_drive_styleSLOT
nominal_thread_diameter0.250 INCHES IN
first_diameter_from_head0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
NSN5305-01-025-4789
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6118-SS-2528-7 · 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
•
MATERIAL: STEEL COMP 303 OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
THREAD SERIES DESIGNATOR: UNF
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD LENGTH: 0.303 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
•
THREAD CLASS: 2A A
•
INTERNAL DRIVE STYLE: SLOT
•
FASTENER LENGTH: 1.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 303 OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD SERIES DESIGNATORUNF
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD LENGTH0.303 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
THREAD CLASS2A A
INTERNAL DRIVE STYLESLOT
FASTENER LENGTH1.750 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD HEIGHT0.546 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
951274-1Interchangeable
interchangeable cross-reference
interchangeable
210220Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6118-SS-2528-7?
6118-SS-2528-7 is a SCREW,EXTERNALLY RELIEVED BODY.
What parts can replace 6118-SS-2528-7?
There are 2 known substitutes for 6118-SS-2528-7: 951274-1, 210220. Substitute compatibility should be verified for your specific system.
What is the NSN for 6118-SS-2528-7?
6118-SS-2528-7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-025-4789. 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