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177647 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

177647: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, ring_style: INTERNAL, usage_design: INTERNAL, major_thickness: 0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN, strength_rating: ERR-060, outside_diameter: 0.747 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-598-2154, 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
177647
NSN: 5325-00-598-2154
FSC: 5325 — Fastening Devices
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
ring_styleINTERNAL
usage_designINTERNAL
major_thickness0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
strength_ratingERR-060
outside_diameter0.747 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating52.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM
cross-sectional_shape_styleRECTANGULAR
criticality_code_justificationFEAT
NSN5325-00-598-2154
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 177647 · 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: 52.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM
•
USAGE DESIGN: INTERNAL
•
STRENGTH RATING: ERR-060
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 0.747 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
•
MAJOR THICKNESS: 0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING52.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM
USAGE DESIGNINTERNAL
STRENGTH RATINGERR-060
CRITICALITY CODE JUSTIFICATIONFEAT
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER0.747 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
MAJOR THICKNESS0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLEINTERNAL
SPECIAL FEATURESTHIS PART MEETS THE Y REQUIREMENTS DUE TO CRITICAL FEATURES, TOLERANCES, FIT RESTRICTIONS, MATERIAL PROPERTIES AND MANUFACTURING PROCESS. FAILURE COULD RESULT IN LOSS OR SUBSTANTIAL DAMAGE TO WEAPON SYSTEM, DEATH OR SERIOUS INJURY
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 177647?
177647 is a RING,RETAINING.
What is the NSN for 177647?
177647 is cataloged in the U.S. Government catalog under NSN 5325-00-598-2154. This indicates validated use in U.S. government and defense supply chains.
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