PartsTable
Technical Data Sheet
Download PDF

40274-0 — O-RING

✓ Government record, cited
3M · NUT WASHER
PRODUCT OVERVIEW

40274-0: O-RING.

The O-RING is a 3M industrial component. Key specifications include height: 0.050 INCHES NOMINAL IN, diameter: 0.1246 INCHES MINIMUM AND 0.1249 INCHES MAXIMUM IN, material: STEEL COMP 414 OVERALL, head_style: FLAT, undercut_width: 0.030 INCHES NOMINAL IN, first_end_style: SQUARE. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-821-1736, 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
40274-0
NSN: 5315-00-821-1736
NIINs: 008211736, 014107865
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 66503 — WOODWARD, INC. DIV FUEL SYSTEMS AND CONTROLS (USA)
SPECIFICATIONS
height0.050 INCHES NOMINAL IN
diameter0.1246 INCHES MINIMUM AND 0.1249 INCHES MAXIMUM IN
materialSTEEL COMP 414 OVERALL
head_styleFLAT
undercut_width0.030 INCHES NOMINAL IN
first_end_styleSQUARE
hardness_rating38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
effective_length0.486 INCHES NOMINAL IN
style_designatorGROOVE
pin_head_diameter0.190 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
under_head_length0.570 INCHES NOMINAL IN
NSN5315-00-821-1736
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 40274-0 · 3M ⚠ 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: 0.030 INCHES NOMINAL IN
•
UNDERCUT DIAMETER: 0.118 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN
•
HOLE ARRANGEMENT STYLE: ONE END DRILLED
•
UNDER HEAD LENGTH: 0.570 INCHES NOMINAL IN
•
FIRST END STYLE: SQUARE
•
FIRST HOLE DIAMETER: 0.047 INCHES NOMINAL IN
•
HARDNESS RATING: 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: GROOVE
TECHNICAL CHARACTERISTICS
UNDERCUT WIDTH0.030 INCHES NOMINAL IN
UNDERCUT DIAMETER0.118 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN
HOLE ARRANGEMENT STYLEONE END DRILLED
UNDER HEAD LENGTH0.570 INCHES NOMINAL IN
FIRST END STYLESQUARE
FIRST HOLE DIAMETER0.047 INCHES NOMINAL IN
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORGROOVE
PIN HEAD DIAMETER0.190 INCHES NOMINAL IN
DIAMETER0.1246 INCHES MINIMUM AND 0.1249 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 40274-0?
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 40274-0?
40274-0 is a O-RING manufactured by 3M.
What is the NSN for 40274-0?
40274-0 is cataloged in the U.S. Government catalog under NSN 5315-00-821-1736. 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 — 40274-0

✓ 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.