PartsTable
Technical Data Sheet
Download PDF

1-4964-1 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1-4964-1: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include height: 2.250 INCHES NOMINAL IN, material: STEEL PLATE, thread_size: 3/8-16UNC-2B ALL THREADED PORTIONS, flange_length: 6.375 INCHES NOMINAL IN, flange_thickness: 0.231 INCHES NOMINAL IN, flange_mounting_hole_diameter: 0.410 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-149-8520, 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
1-4964-1
NSN: 5325-00-149-8520
NIINs: 001498520, 012228762
FSC: 5325 — Fastening Devices
CAGE: 0AHP5 — CURTISS-WRIGHT CONTROLS, INC. DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
height2.250 INCHES NOMINAL IN
materialSTEEL PLATE
thread_size3/8-16UNC-2B ALL THREADED PORTIONS
flange_length6.375 INCHES NOMINAL IN
flange_thickness0.231 INCHES NOMINAL IN
flange_mounting_hole_diameter0.410 INCHES NOMINAL IN
distance_between_mounting_hole_centers2.500 INCHES NOMINAL IN
NSN5325-00-149-8520
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1-4964-1 · 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: 47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
•
USAGE DESIGN: INTERNAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1095 ASSN STD SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 1.770 INCHES MINIMUM AND 1.820 INCHES MAXIMUM IN
•
MAJOR THICKNESS: 0.036 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
USAGE DESIGNINTERNAL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1095 ASSN STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER1.770 INCHES MINIMUM AND 1.820 INCHES MAXIMUM IN
MAJOR THICKNESS0.036 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
SPECIAL FEATURESCOATED W/TFE RESIN EMERALON 310 OR 315 FSCM 70079
MATERIALSTEEL COMP 1095
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
Ready to buy 1-4964-1?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 1-4964-1?
1-4964-1 is a RING,RETAINING.
What is the NSN for 1-4964-1?
1-4964-1 is cataloged in the U.S. Government catalog under NSN 5325-00-149-8520. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 1-4964-1

✓ 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.