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UBS34Q — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

UBS34Q: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, hole_diameter: 1.200 INCHES MINIMUM AND 1.205 INCHES MAXIMUM IN, outside_diameter: 1.440 INCHES MINIMUM AND 1.450 INCHES MAXIMUM IN, split_key_length: 0.210 INCHES NOMINAL IN, style_designator: KEY, material_thickness: 0.036 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-157-8372, 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
UBS34Q
NSN: 5310-01-157-8372
FSC: 5310 — Nuts and Washers
CAGE: K0378 — ROLLS-ROYCE PLC DIV DEFENSE (EUROPE) (GBR)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
hole_diameter1.200 INCHES MINIMUM AND 1.205 INCHES MAXIMUM IN
outside_diameter1.440 INCHES MINIMUM AND 1.450 INCHES MAXIMUM IN
split_key_length0.210 INCHES NOMINAL IN
style_designatorKEY
material_thickness0.036 INCHES NOMINAL IN
external_key_quantity3
external_prebent_key_angle15.0 DEGREES NOMINAL
external_prebent_key_width0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
external_tapered_key_width0.580 INCHES NOMINAL IN
angle_between_external_keys90.0 DEGREES NOMINAL
external_prebent_key_length0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
NSN5310-01-157-8372
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: UBS34Q · 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
•
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY: 0.840 INCHES MINIMUM AND 0.850 INCHES MAXIMUM IN
•
SPLIT KEY LENGTH: 0.210 INCHES NOMINAL IN
•
EXTERNAL PREBENT KEY LENGTH: 0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 1.826 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
•
OUTSIDE DIAMETER: 1.440 INCHES MINIMUM AND 1.450 INCHES MAXIMUM IN
•
EXTERNAL TAPERED KEY WIDTH: 0.580 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.036 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY0.840 INCHES MINIMUM AND 0.850 INCHES MAXIMUM IN
SPLIT KEY LENGTH0.210 INCHES NOMINAL IN
EXTERNAL PREBENT KEY LENGTH0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS1.826 INCHES NOMINAL IN
STYLE DESIGNATORKEY
OUTSIDE DIAMETER1.440 INCHES MINIMUM AND 1.450 INCHES MAXIMUM IN
EXTERNAL TAPERED KEY WIDTH0.580 INCHES NOMINAL IN
MATERIAL THICKNESS0.036 INCHES NOMINAL IN
EXTERNAL KEY QUANTITY3
EXTERNAL PREBENT KEY ANGLE15.0 DEGREES NOMINAL
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
99-781-1395Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is UBS34Q?
UBS34Q is a WASHER,KEY.
What parts can replace UBS34Q?
There is 1 known substitute for UBS34Q: 99-781-1395. Substitute compatibility should be verified for your specific system.
What is the NSN for UBS34Q?
UBS34Q is cataloged in the U.S. Government catalog under NSN 5310-01-157-8372. 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.