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WHA-375-A86 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

WHA-375-A86: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660, ring_style: SPECIAL FLAT, usage_design: INTERNAL, strength_rating: ERR-060, outside_diameter: 3.982 INCHES MINIMUM AND 4.012 INCHES MAXIMUM IN, casehardening_indicator: NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-105-0090, 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
WHA-375-A86
NSN: 5325-01-105-0090
FSC: 5325 — Fastening Devices
CAGE: 51814 — SMALLEY STEEL RING CO. (USA)
SPECIFICATIONS
materialIRON ALLOY 660
ring_styleSPECIAL FLAT
usage_designINTERNAL
strength_ratingERR-060
outside_diameter3.982 INCHES MINIMUM AND 4.012 INCHES MAXIMUM IN
casehardening_indicatorNOT CASEHARDENED
material_document_and_classificationAMS 5525,ALLOY A0286 ASSN STD SINGLE MATERIAL RESPONSE
NSN5325-01-105-0090
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: WHA-375-A86 · 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
•
STRENGTH RATING: ERR-060
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5525,ALLOY A0286 ASSN STD SINGLE MATERIAL RESPONSE
•
OUTSIDE DIAMETER: 3.982 INCHES MINIMUM AND 4.012 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: SPECIAL FLAT
•
MATERIAL: IRON ALLOY 660
TECHNICAL CHARACTERISTICS
USAGE DESIGNINTERNAL
STRENGTH RATINGERR-060
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525,ALLOY A0286 ASSN STD SINGLE MATERIAL RESPONSE
OUTSIDE DIAMETER3.982 INCHES MINIMUM AND 4.012 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESPECIAL FLAT
MATERIALIRON ALLOY 660
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES 1
RR375SNSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is WHA-375-A86?
WHA-375-A86 is a RING,RETAINING.
What parts can replace WHA-375-A86?
There is 1 known substitute for WHA-375-A86: RR375SN. Substitute compatibility should be verified for your specific system.
What is the NSN for WHA-375-A86?
WHA-375-A86 is cataloged in the U.S. Government catalog under NSN 5325-01-105-0090. 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.