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Technical Data Sheet
PartsTable / COMPONENT / 23881-1
23881-1 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL UNS K08500, end_style: 90 DEGREE PARALLEL, ring_style: STRAIGHT GAP, usage_design: EXTERNAL, inside_diameter: 1.708 INCHES MINIMUM AND 1.778 INCHES MAXIMUM IN, strength_rating: ERR-060. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-952-2238, 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
23881-1
NSN: 5325-00-952-2238
FSC: 5325
CAGE: 55820 — RTX CORPORATION DIV PRATT & WHITNEY (USA)
SPECIFICATIONS
materialSTEEL UNS K08500
end_style90 DEGREE PARALLEL
ring_styleSTRAIGHT GAP
usage_designEXTERNAL
inside_diameter1.708 INCHES MINIMUM AND 1.778 INCHES MAXIMUM IN
strength_ratingERR-060
outside_diameter1.810 INCHES MINIMUM AND 1.880 INCHES MAXIMUM IN
material_diameter0.051 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating63.0 ROCKWELL A MINIMUM AND 65.0 ROCKWELL A MAXIMUM
cross-sectional_shape_styleROUND
material_document_and_classificationQQ-W-470, COMP A FED SPEC SINGLE MATERIAL RESPONSE
NSN5325-00-952-2238
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 23881-1 · 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
•
STRENGTH RATING: ERR-060
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
MATERIAL HARDNESS RATING: 63.0 ROCKWELL A MINIMUM AND 65.0 ROCKWELL A MAXIMUM
•
END STYLE: 90 DEGREE PARALLEL
•
MATERIAL DIAMETER: 0.051 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-470, COMP A FED SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: STEEL UNS K08500
•
OUTSIDE DIAMETER: 1.810 INCHES MINIMUM AND 1.880 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
STRENGTH RATINGERR-060
CROSS-SECTIONAL SHAPE STYLEROUND
MATERIAL HARDNESS RATING63.0 ROCKWELL A MINIMUM AND 65.0 ROCKWELL A MAXIMUM
END STYLE90 DEGREE PARALLEL
MATERIAL DIAMETER0.051 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-470, COMP A FED SPEC SINGLE MATERIAL RESPONSE
MATERIALSTEEL UNS K08500
OUTSIDE DIAMETER1.810 INCHES MINIMUM AND 1.880 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESTRAIGHT GAP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
PA5648Interchangeable
interchangeable cross-reference
interchangeable
23881Interchangeable
interchangeable cross-reference
interchangeable
QQ-A-200/11Interchangeable
interchangeable cross-reference
interchangeable
37740Interchangeable
interchangeable cross-reference
interchangeable
402510013Interchangeable
interchangeable cross-reference
interchangeable
MS16998-101Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 23881-1?
23881-1 is a RING,RETAINING.
What parts can replace 23881-1?
There are 7 known substitutes for 23881-1: PA5648, 23881, QQ-A-200/11 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 23881-1?
23881-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-952-2238. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026