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4010239 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

4010239: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include end_item_identification: NSN: 2350-01-509-3953; MULTIPLE LAUNCH ROCKET SYSTEM (MLRS), part_name_assigned_by_controlling_agency: CAP,ADAPTER,SUCTION. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-425-8529, 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
4010239
NSN: 5325-00-425-8529
NIINs: 004258529, 015507476
FSC: 5325 — Fastening Devices
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
end_item_identificationNSN: 2350-01-509-3953; MULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
part_name_assigned_by_controlling_agencyCAP,ADAPTER,SUCTION
NSN5325-00-425-8529
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4010239 · 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
•
USAGE DESIGN: INTERNAL
•
END STYLE: 90 DEGREE PARALLEL
•
MATERIAL DIAMETER: 0.060 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5698 ASSN STD SINGLE MATERIAL RESPONSE
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CROSS-SECTIONAL SHAPE STYLE: ROUND
•
OUTSIDE DIAMETER: 3.705 INCHES MINIMUM AND 3.795 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 3.575 INCHES MINIMUM AND 3.675 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS
USAGE DESIGNINTERNAL
END STYLE90 DEGREE PARALLEL
MATERIAL DIAMETER0.060 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5698 ASSN STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEROUND
OUTSIDE DIAMETER3.705 INCHES MINIMUM AND 3.795 INCHES MAXIMUM IN
INSIDE DIAMETER3.575 INCHES MINIMUM AND 3.675 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESTRAIGHT GAP
MATERIALNICKEL ALLOY X-750
SUBSTITUTES & CROSS-REFERENCES 1
5325PL0789078Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4010239?
4010239 is a RING,RETAINING.
What parts can replace 4010239?
There is 1 known substitute for 4010239: 5325PL0789078. Substitute compatibility should be verified for your specific system.
What is the NSN for 4010239?
4010239 is cataloged in the U.S. Government catalog under NSN 5325-00-425-8529. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.