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RR-56SP — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

RR-56SP: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302, ring_style: SPIRAL, usage_design: INTERNAL, inside_diameter: 0.504 INCHES NOMINAL IN, major_thickness: 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN, strength_rating: ERR-060. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-131-4796, 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
RR-56SP
NSN: 5325-01-131-4796
NIINs: 011314796, 012873646
FSC: 5325 — Fastening Devices
CAGE: 80756 — SPIROLOX INC (USA)
SPECIFICATIONS
materialSTEEL COMP 302
ring_styleSPIRAL
usage_designINTERNAL
inside_diameter0.504 INCHES NOMINAL IN
major_thickness0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
strength_ratingERR-060
outside_diameter0.594 INCHES MINIMUM AND 0.607 INCHES MAXIMUM IN
special_featuresUNCRIMPED
surface_treatmentPASSIVATE
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating72.0 ROCKWELL A MINIMUM AND 74.9 ROCKWELL A MAXIMUM
cross-sectional_shape_styleDOUBLE OVAL
NSN5325-01-131-4796
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: RR-56SP · 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: EXTERNAL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5519 ASSN STD SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
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OUTSIDE DIAMETER: 0.594 INCHES MINIMUM AND 0.607 INCHES MAXIMUM IN
•
MAJOR THICKNESS: 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 0.512 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5519 ASSN STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
OUTSIDE DIAMETER0.594 INCHES MINIMUM AND 0.607 INCHES MAXIMUM IN
MAJOR THICKNESS0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
INSIDE DIAMETER0.512 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESPIRAL
SPECIAL FEATURESUNCRIMPED
SUBSTITUTES & CROSS-REFERENCES 2
10160157Reference document
Same NSN cross-reference
Reference document — Informative reference only
WH-56-PA-S02-ZSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 RR-56SP?
RR-56SP is a RING,RETAINING.
What parts can replace RR-56SP?
There are 2 known substitutes for RR-56SP: 10160157, WH-56-PA-S02-Z. Substitute compatibility should be verified for your specific system.
What is the NSN for RR-56SP?
RR-56SP is cataloged in the U.S. Government catalog under NSN 5325-01-131-4796. This indicates validated use in U.S. government and defense supply chains.
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