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177A265 PIECE 2 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

177A265 PIECE 2: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include ring_style: SPIRAL, usage_design: INTERNAL, inside_diameter: 19.423 INCHES NOMINAL IN, major_thickness: 0.080 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN, outside_diameter: 20.173 INCHES MINIMUM AND 20.373 INCHES MAXIMUM IN, casehardening_indicator: NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-727-4763, 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
177A265 PIECE 2
NSN: 5325-00-727-4763
FSC: 5325 — Fastening Devices
CAGE: 17454 — TIMKEN GEARS & SERVICES INC. DIV PHILADELPHIA GEAR (USA)
SPECIFICATIONS
materialSTEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090
ring_styleSPIRAL
usage_designINTERNAL
inside_diameter19.423 INCHES NOMINAL IN
major_thickness0.080 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
outside_diameter20.173 INCHES MINIMUM AND 20.373 INCHES MAXIMUM IN
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleDOUBLE OVAL
NSN5325-00-727-4763
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 177A265 PIECE 2 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1070 ASSN STD 1ST MATERIAL RESPONSE OR SAE 1074 ASSN STD 2ND MATERIAL RESPONSE OR SAE 1078 ASSN STD 3RD MATERIAL RESPONSE OR SAE 1080 ASSN STD 4TH MATERIAL RESPONSE OR SAE 1084 ASSN STD 5TH MATERIAL RESPONSE OR SAE 1085 ASSN STD 6TH MATERIAL RESPONSE OR SAE 1086 ASSN STD 7TH MATERIAL RESPONSE OR SAE 1090 ASSN STD 8TH MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
•
OUTSIDE DIAMETER: 20.173 INCHES MINIMUM AND 20.373 INCHES MAXIMUM IN
•
MAJOR THICKNESS: 0.080 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 19.423 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: SPIRAL
TECHNICAL CHARACTERISTICS
USAGE DESIGNINTERNAL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1070 ASSN STD 1ST MATERIAL RESPONSE OR SAE 1074 ASSN STD 2ND MATERIAL RESPONSE OR SAE 1078 ASSN STD 3RD MATERIAL RESPONSE OR SAE 1080 ASSN STD 4TH MATERIAL RESPONSE OR SAE 1084 ASSN STD 5TH MATERIAL RESPONSE OR SAE 1085 ASSN STD 6TH MATERIAL RESPONSE OR SAE 1086 ASSN STD 7TH MATERIAL RESPONSE OR SAE 1090 ASSN STD 8TH MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
OUTSIDE DIAMETER20.173 INCHES MINIMUM AND 20.373 INCHES MAXIMUM IN
MAJOR THICKNESS0.080 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
INSIDE DIAMETER19.423 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESPIRAL
MATERIALSTEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 177A265 PIECE 2?
177A265 PIECE 2 is a RING,RETAINING.
What is the NSN for 177A265 PIECE 2?
177A265 PIECE 2 is cataloged in the U.S. Government catalog under NSN 5325-00-727-4763. 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.