PartsTable
Technical Data Sheet
6251-13 ✓ 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 BOLT,RIBBED SHOULDER is a the manufacturer industrial component. Key specifications include end_item_identification: STAND-ALONE GROUND SUPPORT AIR CONDITIONER, MODEL MK-12. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-882-7811, 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
6251-13
NSN: 5306-00-882-7811
FSC: 5306
CAGE: 0W357 — PDI GROUND SUPPORT SYSTEMS, INC. (USA)
SPECIFICATIONS
end_item_identificationSTAND-ALONE GROUND SUPPORT AIR CONDITIONER, MODEL MK-12
NSN5306-00-882-7811
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6251-13 · 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
THREAD DIRECTION: RIGHT-HAND
FASTENER LENGTH: 2.062 INCHES MINIMUM AND 2.093 INCHES MAXIMUM IN
HEAD DIAMETER: 0.750 INCHES NOMINAL IN
SHOULDER DIAMETER: 0.552 INCHES MINIMUM AND 0.562 INCHES MAXIMUM FIRST SHOULDER IN
FEATURES PROVIDED: CASEHARDENED
MATERIAL: STEEL COMP 1020 OVERALL
THREAD QUANTITY PER INCH: 20
RIB MINOR DIAMETER: 0.526 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH2.062 INCHES MINIMUM AND 2.093 INCHES MAXIMUM IN
HEAD DIAMETER0.750 INCHES NOMINAL IN
SHOULDER DIAMETER0.552 INCHES MINIMUM AND 0.562 INCHES MAXIMUM FIRST SHOULDER IN
FEATURES PROVIDEDCASEHARDENED
MATERIALSTEEL COMP 1020 OVERALL
THREAD QUANTITY PER INCH20
RIB MINOR DIAMETER0.526 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SHOULDER SHAPERIBBED FIRST SHOULDER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
6251-13Upgraded Successor
successor cross-reference
successor
B758-A0014Upgraded Successor
successor cross-reference
successor
6515NCM115834Upgraded Successor
successor cross-reference
successor
03.010.101Upgraded Successor
successor cross-reference
successor
16806Upgraded Successor
successor cross-reference
successor
A501X428Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6251-13?
6251-13 is a BOLT,RIBBED SHOULDER.
What parts can replace 6251-13?
There are 22 known substitutes for 6251-13: 6251-13, B758-A0014, 6515NCM115834 and 19 more. Substitute compatibility should be verified for your specific system.
Is 6251-13 still available?
6251-13 is currently cancelled.
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