PartsTable
Technical Data Sheet
Q2-3 ✓ Verified by PartsTable
· NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The GEAR,WORM is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, face_type: STRAIGHT, nut_style: ROUND, bore_style: PLAIN BOTH ENDS, helix_angle: 1.7831 DEGREES, battery_type: DRY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-275-6694, 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
Q2-3
NSN: 5310-00-275-6694
FSC: 5310
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
face_typeSTRAIGHT
nut_styleROUND
bore_stylePLAIN BOTH ENDS
helix_angle1.7831 DEGREES
battery_typeDRY
nut_diameter2.188 INCHES NOMINAL IN
power_sourceSELF-CONTAINED
thread_class3B
nut_thickness0.562 INCHES NOMINAL IN
thread_seriesUNF
inclosure_typeENCASED
NSN5310-00-275-6694
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: Q2-3 · 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
DRIVE POINT DIAMETER: 0.281 INCHES NOMINAL IN
HOLE CONFIGURATION STYLE: CONFIGURATION J
THREAD QUANTITY PER INCH: 14
THREAD SERIES: UNF
NOMINAL THREAD SIZE: 0.875 INCHES IN
HOLE TYPE AND QUANTITY: 1 DRILLED
DRIVE POINT DEPTH: 0.281 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-637 FED SPEC ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
DRIVE POINT DIAMETER0.281 INCHES NOMINAL IN
HOLE CONFIGURATION STYLECONFIGURATION J
THREAD QUANTITY PER INCH14
THREAD SERIESUNF
NOMINAL THREAD SIZE0.875 INCHES IN
HOLE TYPE AND QUANTITY1 DRILLED
DRIVE POINT DEPTH0.281 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-637 FED SPEC ALL MATERIAL RESPONSES OVERALL
NUT STYLEROUND
DRILLED HOLE DIAMETER0.562 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
W8-3Interchangeable
interchangeable cross-reference
interchangeable
02-3Interchangeable
interchangeable cross-reference
interchangeable
Q2-3Interchangeable
interchangeable cross-reference
interchangeable
000050219700Interchangeable
interchangeable cross-reference
interchangeable
5266593-002Interchangeable
interchangeable cross-reference
interchangeable
574-7804-812611REVA17Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is Q2-3?
Q2-3 is a GEAR,WORM.
What parts can replace Q2-3?
There are 13 known substitutes for Q2-3: W8-3, 02-3, Q2-3 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for Q2-3?
Q2-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-275-6694. This indicates validated use in U.S. government and defense supply chains.
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