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RS437C — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

RS437C: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, ring_style: SPIRAL, usage_design: EXTERNAL, inside_diameter: 4.168 INCHES MINIMUM AND 4.208 INCHES MAXIMUM IN, major_thickness: 0.058 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN, outside_diameter: 4.624 INCHES MINIMUM AND 4.664 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-944-8277, 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
RS437C
NSN: 5325-00-944-8277
FSC: 5325 — Fastening Devices
CAGE: 80756 — SPIROLOX INC (USA)
SPECIFICATIONS
materialSTEEL
ring_styleSPIRAL
usage_designEXTERNAL
inside_diameter4.168 INCHES MINIMUM AND 4.208 INCHES MAXIMUM IN
major_thickness0.058 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
outside_diameter4.624 INCHES MINIMUM AND 4.664 INCHES MAXIMUM IN
surface_treatmentCADMIUM
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleDOUBLE OVAL
material_document_and_classificationSAE 1070-1090 ASSN STD SINGLE MATERIAL RESPONSE
NSN5325-00-944-8277
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: RS437C · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1070-1090 ASSN STD SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
•
OUTSIDE DIAMETER: 4.624 INCHES MINIMUM AND 4.664 INCHES MAXIMUM IN
•
MAJOR THICKNESS: 0.058 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 4.168 INCHES MINIMUM AND 4.208 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: SPIRAL
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1070-1090 ASSN STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
OUTSIDE DIAMETER4.624 INCHES MINIMUM AND 4.664 INCHES MAXIMUM IN
MAJOR THICKNESS0.058 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
INSIDE DIAMETER4.168 INCHES MINIMUM AND 4.208 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESPIRAL
SURFACE TREATMENTCADMIUM
MATERIALSTEEL
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 2
69984-437PSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
WS-437-CAReference 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 RS437C?
RS437C is a RING,RETAINING.
What parts can replace RS437C?
There are 2 known substitutes for RS437C: 69984-437P, WS-437-CA. Substitute compatibility should be verified for your specific system.
What is the NSN for RS437C?
RS437C is cataloged in the U.S. Government catalog under NSN 5325-00-944-8277. 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.