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428B166 PIECE 1 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

428B166 PIECE 1: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5325-01-239-9352, 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
428B166 PIECE 1
NSN: 5325-01-239-9352
NIINs: 012399352, 012407180
FSC: 5325 — Fastening Devices
CAGE: 01289 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
Part Number428B166 PIECE 1
NSN5325-01-239-9352
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 428B166 PIECE 1 · 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
SUBSTITUTES & CROSS-REFERENCES 1
574E924 PIECE 16Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 428B166 PIECE 1?
428B166 PIECE 1 is a RING,RETAINING.
What parts can replace 428B166 PIECE 1?
There is 1 known substitute for 428B166 PIECE 1: 574E924 PIECE 16. Substitute compatibility should be verified for your specific system.
What is the NSN for 428B166 PIECE 1?
428B166 PIECE 1 is cataloged in the U.S. Government catalog under NSN 5325-01-239-9352. This indicates validated use in U.S. government and defense supply chains.
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