PartsTable
Technical Data Sheet
31956 ✓ 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

- USB 2.0/OTG Type Micro A Male to USB 2.0 Type A Female<br>- Black cable<br>- Fully shielded cable with moulded connectors<br>- 10 year warranty<br><br>This high quality cable complies with USB 1.1, USB 2.0 and USB On-The-Go (OTG) specifications. Supporting data transfer speeds up to 480Mbit/sec, it is fully compatible with all USB and USB OTG devices. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-281-7265, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS
31956
NSN: 5315-00-281-7265
FSC: 5315
CAGE: 05573 — BARNES GROUP INC. DBA BARNES DISTRIBUTION (USA)
SPECIFICATIONS
materialSTEEL COMP 1035 OVERALL
thickness0.188 INCHES NOMINAL IN
key_height0.438 INCHES NOMINAL IN
circle_diameter1.000 INCHES NOMINAL IN
hardness_rating90.7 ROCKWELL B NOMINAL OVERALL
style_designatorROUND BOTTOM
starting_edge_shapeSTRAIGHT
key_size_designationWOODRUFF 13
material_document_and_classificationQQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-281-7265
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 31956 · 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
THICKNESS: 0.188 INCHES NOMINAL IN
CIRCLE DIAMETER: 1.000 INCHES NOMINAL IN
KEY HEIGHT: 0.438 INCHES NOMINAL IN
KEY SIZE DESIGNATION: WOODRUFF 13
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
STARTING EDGE SHAPE: STRAIGHT
STYLE DESIGNATOR: ROUND BOTTOM
MATERIAL: STEEL COMP 1035 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.188 INCHES NOMINAL IN
CIRCLE DIAMETER1.000 INCHES NOMINAL IN
KEY HEIGHT0.438 INCHES NOMINAL IN
KEY SIZE DESIGNATIONWOODRUFF 13
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
STARTING EDGE SHAPESTRAIGHT
STYLE DESIGNATORROUND BOTTOM
MATERIALSTEEL COMP 1035 OVERALL
HARDNESS RATING90.7 ROCKWELL B NOMINAL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
2625-12Interchangeable
interchangeable cross-reference
interchangeable
B40Interchangeable
interchangeable cross-reference
interchangeable
937020Interchangeable
Same NIIN cross-reference
interchangeable
S2891Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 31956?
31956 is a KEY,WOODRUFF manufactured by Lindy.
What parts can replace 31956?
There are 4 known substitutes for 31956: 2625-12, B40, 937020 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 31956?
31956 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-281-7265. This indicates validated use in U.S. government and defense supply chains.
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