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Technical Data Sheet
PartsTable / COMPONENT / 123499
123499 ✓ 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 RISER ASSEMBLY,EJECTION SEAT is a the manufacturer industrial component. Key specifications include special_features: ALMIS INVENTORY IEP DATA, end_item_identification: BRACKET KIT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-012-3499, 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
123499
NSN: 5306-00-012-3499
FSC: 5306
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
special_featuresALMIS INVENTORY IEP DATA
end_item_identificationBRACKET KIT
NSN5306-00-012-3499
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 123499 · 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
•
FASTENER LENGTH: 1.125 INCHES NOMINAL IN
•
FEATURES PROVIDED: FINISHED HEAD
•
THREAD LENGTH: 0.875 INCHES MINIMUM IN
•
HEAD HEIGHT: 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
•
THREAD SERIES DESIGNATOR: UNF
•
THREAD CLASS: 2A A
•
HARDNESS RATING: 100.0 ROCKWELL B MAXIMUM OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 FED SPEC 2ND TREATMENT RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
FASTENER LENGTH1.125 INCHES NOMINAL IN
FEATURES PROVIDEDFINISHED HEAD
THREAD LENGTH0.875 INCHES MINIMUM IN
HEAD HEIGHT0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORUNF
THREAD CLASS2A A
HARDNESS RATING100.0 ROCKWELL B MAXIMUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 FED SPEC 2ND TREATMENT RESPONSE OVERALL
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
FFS85Upgraded Successor
successor cross-reference
successor
186274Upgraded Successor
successor cross-reference
successor
MS90725-52Upgraded Successor
successor cross-reference
successor
0251428Upgraded Successor
successor cross-reference
successor
MS90726-40Upgraded Successor
successor cross-reference
successor
301551Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 123499?
123499 is a RISER ASSEMBLY,EJECTION SEAT.
What parts can replace 123499?
There are 25 known substitutes for 123499: FFS85, 186274, MS90725-52 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 123499?
123499 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-012-3499. 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