PartsTable
Technical Data Sheet
Download PDF

88985 — RING,PILOT,HYDRAULIC

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

88985: RING,PILOT,HYDRAULIC.

The RING,PILOT,HYDRAULIC is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: STEEL 1020,0.312 IN. LG,3.248 IN.

OD,3.094 IN. ID IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-291-2560, 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
88985
NSN: 5315-00-291-2560
NIINs: 002912560, 004864329
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL 1020,0.312 IN. LG,3.248 IN. OD,3.094 IN. ID IN
NSN5315-00-291-2560
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 88985 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
UNDERCUT WIDTH: 0.060 INCHES NOMINAL IN
•
UNDERCUT DIAMETER: 0.074 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN
•
UNDER HEAD LENGTH: 0.520 INCHES NOMINAL IN
•
FIRST END STYLE: RADIUS
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: GROOVE
•
PIN HEAD DIAMETER: 0.200 INCHES NOMINAL IN
•
DIAMETER: 0.1235 INCHES MINIMUM AND 0.1245 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
UNDERCUT WIDTH0.060 INCHES NOMINAL IN
UNDERCUT DIAMETER0.074 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN
UNDER HEAD LENGTH0.520 INCHES NOMINAL IN
FIRST END STYLERADIUS
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORGROOVE
PIN HEAD DIAMETER0.200 INCHES NOMINAL IN
DIAMETER0.1235 INCHES MINIMUM AND 0.1245 INCHES MAXIMUM IN
EFFECTIVE LENGTH0.280 INCHES NOMINAL IN
HEAD STYLEFLAT
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
Ready to buy 88985?
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 88985?
88985 is a RING,PILOT,HYDRAULIC.
What is the NSN for 88985?
88985 is cataloged in the U.S. Government catalog under NSN 5315-00-291-2560. 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 — 88985

✓ 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.