PartsTable
Technical Data Sheet
Download PDF

6148-SS-2528-7 — SCREW,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6148-SS-2528-7: SCREW,EXTERNALLY RELIEVED BODY.

The SCREW,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include head_style: KNURLED NO. 4KNURLED NO.

4, head_height: 0.234 INCHES MINIMUM AND 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN, thread_class: 2A2A, head_diameter: 0.557 INCHES MINIMUM AND 0.557 INCHES MINIMUM AND 0.567 INCHES MAXIMUM0.567 INCHES MAXIMUM IN, thread_length: 0.359 INCHES MINIMUM AND 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM0.391 INCHES MAXIMUM IN, fastener_length: 0.922 INCHES MINIMUM AND 0.922 INCHES MINIMUM AND 0.954 INCHES MAXIMUM0.954 INCHES MAXIMUM IN. This part is cataloged in the U.S. Government catalog under NSN 5305-01-133-2174, 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
6148-SS-2528-7
NSN: 5305-01-133-2174
FSC: 5305 — Screws
CAGE: 1YGB8 — CAREY MANUFACTURING CO, INC DBA AMATOM ELECTRONIC HARDWARE DIV AMATOM ELECTRONIC HARDWARE (USA)
SPECIFICATIONS
head_styleKNURLED NO. 4KNURLED NO. 4
head_height0.234 INCHES MINIMUM AND 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
thread_class2A2A
head_diameter0.557 INCHES MINIMUM AND 0.557 INCHES MINIMUM AND 0.567 INCHES MAXIMUM0.567 INCHES MAXIMUM IN
thread_length0.359 INCHES MINIMUM AND 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM0.391 INCHES MAXIMUM IN
fastener_length0.922 INCHES MINIMUM AND 0.922 INCHES MINIMUM AND 0.954 INCHES MAXIMUM0.954 INCHES MAXIMUM IN
special_featuresSTRAIGHT KNURLSTRAIGHT KNURL
thread_directionRIGHT-HANDRIGHT-HAND
surface_treatmentPASSIVATE OVERALLPASSIVATE OVERALL
internal_drive_styleSLOTSLOT
nominal_thread_diameter0.250 INCHES0.250 INCHES IN
first_diameter_from_head0.170 INCHES MINIMUM AND 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM0.180 INCHES MAXIMUM IN
NSN5305-01-133-2174
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6148-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
•
HEAD HEIGHT: 0.234 INCHES MINIMUM AND 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.922 INCHES MINIMUM AND 0.922 INCHES MINIMUM AND 0.954 INCHES MAXIMUM0.954 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALLQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.359 INCHES MINIMUM AND 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM0.391 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A581 ASSN STD ALL MATERIAL RESPONSES OVERALLASTM A581 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
FIRST DIAMETER FROM HEAD: 0.170 INCHES MINIMUM AND 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM0.180 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES0.250 INCHES IN
•
HEAD STYLE: KNURLED NO. 4KNURLED NO. 4
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.234 INCHES MINIMUM AND 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
FASTENER LENGTH0.922 INCHES MINIMUM AND 0.922 INCHES MINIMUM AND 0.954 INCHES MAXIMUM0.954 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALLQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.359 INCHES MINIMUM AND 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM0.391 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A581 ASSN STD ALL MATERIAL RESPONSES OVERALLASTM A581 ASSN STD ALL MATERIAL RESPONSES OVERALL
FIRST DIAMETER FROM HEAD0.170 INCHES MINIMUM AND 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM0.180 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES0.250 INCHES IN
HEAD STYLEKNURLED NO. 4KNURLED NO. 4
THREAD DIRECTIONRIGHT-HANDRIGHT-HAND
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.553 INCHES MINIMUM AND 0.553 INCHES MINIMUM AND 0.573 INCHES MAXIMUM0.573 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 6148-SS-2528-7?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 6148-SS-2528-7?
6148-SS-2528-7 is a SCREW,EXTERNALLY RELIEVED BODY.
What is the NSN for 6148-SS-2528-7?
6148-SS-2528-7 is cataloged in the U.S. Government catalog under NSN 5305-01-133-2174. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 6148-SS-2528-7

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.