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212F1 PIECE 4 ✓ 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 WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: GLASS AND PLASTIC TETRAFLUOROETHYLENE OVERALL, thickness: 0.027 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN, hole_diameter: 0.828 INCHES NOMINAL IN, overall_diameter: 1.250 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-952-5353, 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
212F1 PIECE 4
NSN: 5310-00-952-5353
FSC: 5310
CAGE: 05214 — COMPUTER MACHINING TECHNOLOGY CORP (USA)
SPECIFICATIONS
materialGLASS AND PLASTIC TETRAFLUOROETHYLENE OVERALL
thickness0.027 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
hole_diameter0.828 INCHES NOMINAL IN
overall_diameter1.250 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-952-5353
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 212F1 PIECE 4 · 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
•
MATERIAL: GLASS AND PLASTIC TETRAFLUOROETHYLENE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
HOLE DIAMETER: 0.828 INCHES NOMINAL IN
•
OVERALL DIAMETER: 1.250 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
THICKNESS: 0.027 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALGLASS AND PLASTIC TETRAFLUOROETHYLENE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.828 INCHES NOMINAL IN
OVERALL DIAMETER1.250 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.027 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
276-1225P2Interchangeable
interchangeable cross-reference
interchangeable
G650167Interchangeable
interchangeable cross-reference
interchangeable
M4P-LSInterchangeable
interchangeable cross-reference
interchangeable
180X013-43Interchangeable
Same NIIN cross-reference
interchangeable
90-013-43Interchangeable
Same NIIN cross-reference
interchangeable
ANP2-29Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 212F1 PIECE 4?
212F1 PIECE 4 is a WASHER,FLAT.
What parts can replace 212F1 PIECE 4?
There are 6 known substitutes for 212F1 PIECE 4: 276-1225P2, G650167, M4P-LS and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 212F1 PIECE 4?
212F1 PIECE 4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-952-5353. 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