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Technical Data Sheet
PartsTable / COMPONENT / 3-1261
3-1261 ✓ Verified by PartsTable
Lindy · 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 perfect book for bedtime, kids will love tucking each baby into its bed as they read along with this illustrated 12-page board book with pockets on each spread. Five play tags (piglet, chick, puppy, lamb, baby) are attached to the book with colorful ribbons. Tuck the tags into the pockets near the matching mamas to put them to bed! Tags store in a pocket at the front of the book between readings.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-062-0585, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
3-1261
NSN: 5310-00-062-0585
FSC: 5310
CAGE: 04823 — TACTAIR FLUID CONTROLS INC WESTERN HYDRAULICS DIV (USA)
SPECIFICATIONS
angle45.0 DEGREES NOMINAL
materialSTEEL OVERALL
nut_styleHEXAGON
body_styleSTRAIGHT SHAPE, EXTERNAL COUPLING
nut_height0.290 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
shell_typeSOLID
thread_class2B
end_item_nameTRUCK, LIFT, FORK
overall_width0.688 INCHES NOMINAL IN
terminal_typeSOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING
thread_seriesUN
overall_height0.688 INCHES NOMINAL IN
NSN5310-00-062-0585
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3-1261 · Lindy ⚠ 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
•
NUT HEIGHT: 0.290 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 2.620 INCHES NOMINAL IN
•
THREAD SERIES: UN
•
BEARING SURFACE TYPE: FLAT
•
HOLE CONFIGURATION STYLE: CONFIGURATION B
•
NOMINAL THREAD SIZE: 2.250 INCHES IN
•
THREAD QUANTITY PER INCH: 12
•
DRILLED HOLE DIAMETER: 0.063 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
NUT HEIGHT0.290 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
WIDTH ACROSS FLATS2.620 INCHES NOMINAL IN
THREAD SERIESUN
BEARING SURFACE TYPEFLAT
HOLE CONFIGURATION STYLECONFIGURATION B
NOMINAL THREAD SIZE2.250 INCHES IN
THREAD QUANTITY PER INCH12
DRILLED HOLE DIAMETER0.063 INCHES NOMINAL IN
HOLE TYPE AND QUANTITY3 DRILLED
SURFACE TREATMENTCADMIUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
31261Interchangeable
interchangeable cross-reference
interchangeable
8-910Interchangeable
interchangeable cross-reference
interchangeable
EJA02M01Interchangeable
interchangeable cross-reference
interchangeable
31-3126-1Interchangeable
interchangeable cross-reference
interchangeable
EJA01M01Interchangeable
interchangeable cross-reference
interchangeable
031261Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3-1261?
3-1261 is a CONNECTOR,RECEPTACLE,ELECTRICAL manufactured by Lindy.
What parts can replace 3-1261?
There are 6 known substitutes for 3-1261: 31261, 8-910, EJA02M01 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3-1261?
3-1261 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-062-0585. 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