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408428-8 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

408428-8: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include design_type: AXIAL COMPRESSOR, usage_design: INTERNAL, outside_diameter: 68.0 MILLIMETERS NOMINAL MM, special_features: ENSURES FULL LIFE REQUIREMENTS ARE MET BY APPLYING INTENSE SHOT PEEN ALL AROUND THE STRUT AREA, end_item_identification: ACFT ENG F100-PW-229, engine_section_location: COMPRESSOR. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-441-5550, 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
408428-8
NSN: 5325-01-441-5550
NIINs: 014415550, 014547239
FSC: 5325 — Fastening Devices
CAGE: 63504 — PALFINGER MARINE USA, LLC (USA)
SPECIFICATIONS
design_typeAXIAL COMPRESSOR
usage_designINTERNAL
outside_diameter68.0 MILLIMETERS NOMINAL MM
special_featuresENSURES FULL LIFE REQUIREMENTS ARE MET BY APPLYING INTENSE SHOT PEEN ALL AROUND THE STRUT AREA
end_item_identificationACFT ENG F100-PW-229
engine_section_locationCOMPRESSOR
criticality_code_justificationAGAV
part_name_assigned_by_controlling_agencyCASE,INTERMEDIATE
NSN5325-01-441-5550
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 408428-8 · 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
•
OUTSIDE DIAMETER: 68.0 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
USAGE DESIGNINTERNAL
OUTSIDE DIAMETER68.0 MILLIMETERS NOMINAL MM
SUBSTITUTES & CROSS-REFERENCES 1
D408428-8Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 408428-8?
408428-8 is a RING,RETAINING.
What parts can replace 408428-8?
There is 1 known substitute for 408428-8: D408428-8. Substitute compatibility should be verified for your specific system.
What is the NSN for 408428-8?
408428-8 is cataloged in the U.S. Government catalog under NSN 5325-01-441-5550. 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.