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91590A127 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

91590A127: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, ring_style: INTERNAL, usage_design: EXTERNAL, inside_diameter: 0.625 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN, major_thickness: 0.6875 INCHES NOMINAL IN, strength_rating: ERR-060. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-606-3760, 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
91590A127
NSN: 5325-01-606-3760
FSC: 5325 — Fastening Devices
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
ring_styleINTERNAL
usage_designEXTERNAL
inside_diameter0.625 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
major_thickness0.6875 INCHES NOMINAL IN
strength_ratingERR-060
outside_diameter0.673 INCHES MINIMUM AND 0.724 INCHES MAXIMUM IN
casehardening_indicatorNOT CASEHARDENED
end_item_identificationABV-TURRET,LRU ASSE
material_hardness_rating43.0 ROCKWELL C NOMINAL
cross-sectional_shape_styleROUNDED OUTSIDE CORNERS
part_name_assigned_by_controlling_agencyRING, RETAINING
NSN5325-01-606-3760
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 91590A127 · 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
•
MATERIAL HARDNESS RATING: 43.0 ROCKWELL C NOMINAL
•
USAGE DESIGN: EXTERNAL
•
STRENGTH RATING: ERR-060
•
CROSS-SECTIONAL SHAPE STYLE: ROUNDED OUTSIDE CORNERS
•
OUTSIDE DIAMETER: 0.673 INCHES MINIMUM AND 0.724 INCHES MAXIMUM IN
•
MAJOR THICKNESS: 0.6875 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.625 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING43.0 ROCKWELL C NOMINAL
USAGE DESIGNEXTERNAL
STRENGTH RATINGERR-060
CROSS-SECTIONAL SHAPE STYLEROUNDED OUTSIDE CORNERS
OUTSIDE DIAMETER0.673 INCHES MINIMUM AND 0.724 INCHES MAXIMUM IN
MAJOR THICKNESS0.6875 INCHES NOMINAL IN
INSIDE DIAMETER0.625 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLEINTERNAL
PART NAME ASSIGNED BY CONTROLLING AGENCYRING, RETAINING
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

No substitute or cross-reference records for this part.

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 91590A127?
91590A127 is a RING,RETAINING.
What is the NSN for 91590A127?
91590A127 is cataloged in the U.S. Government catalog under NSN 5325-01-606-3760. This indicates validated use in U.S. government and defense supply chains.
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