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X2777 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

X2777: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, usage_design: INTERNAL, major_thickness: 0.109 INCHES NOMINAL IN, outside_diameter: 3.310 INCHES NOMINAL IN, casehardening_indicator: NOT CASEHARDENED, cross-sectional_shape_style: RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-217-4258, 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
X2777
NSN: 5325-01-217-4258
FSC: 5325 — Fastening Devices
CAGE: 64392 — WEIL PUMP CO INC (USA)
SPECIFICATIONS
materialSTEEL
usage_designINTERNAL
major_thickness0.109 INCHES NOMINAL IN
outside_diameter3.310 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleRECTANGULAR
NSN5325-01-217-4258
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: X2777 · 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
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 3.310 INCHES NOMINAL IN
•
MAJOR THICKNESS: 0.109 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
USAGE DESIGNINTERNAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER3.310 INCHES NOMINAL IN
MAJOR THICKNESS0.109 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 2
MIL-STD-130KReference document
Same NSN cross-reference
Reference document — Identification reference
A-10202 PIECE 9Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 X2777?
X2777 is a RING,RETAINING.
What parts can replace X2777?
There are 2 known substitutes for X2777: MIL-STD-130K, A-10202 PIECE 9. Substitute compatibility should be verified for your specific system.
What is the NSN for X2777?
X2777 is cataloged in the U.S. Government catalog under NSN 5325-01-217-4258. 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.