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20748 — FLANGE,ADAPTER

✓ Government record, cited
schleich · NUT WASHER
PRODUCT OVERVIEW

20748: FLANGE,ADAPTER.

Say it with flowers. That is exactly what a smurf thought, and with the help of flowers he picked himself, he says: “Thank you!” - Fun Fact : “Thank you” says the smurf with the flowers he picked himself This part is cataloged in the U.S. Government catalog under NSN 5310-00-579-9806, 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
20748
NSN: 5310-00-579-9806
NIINs: 005799806, 006842224, 008059244, 014351175
FSC: 5310 — Nuts and Washers
CAGE: 82423 — KLEINSCHMIDT INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
thickness0.080 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
overall_length0.536 INCHES MINIMUM AND 0.538 INCHES MAXIMUM IN
special_featuresORIGINAL NAME - RETAINER,LOCKING PI
thread_directionRIGHT-HAND
countersink_depth0.050 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
features_providedCOUNTERSUNK
width_across_flats1.250 INCHES NOMINAL IN
nominal_thread_size1.000 INCHES IN
screw_thread_length0.456 INCHES MINIMUM AND 0.458 INCHES MAXIMUM IN
countersink_locationTHREADED END AND WRENCHING END
hole_inside_diameter0.450 INCHES NOMINAL IN
NSN5310-00-579-9806
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 20748 · schleich ⚠ 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
•
OVERALL DIAMETER: 0.875 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: C-F-206,TYPE 1,CL 16R1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MINIMUM TENSILE STRENGTH: 500 POUNDS PER SQUARE INCH LBS
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: WOOL COMP 16R1 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.875 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONC-F-206,TYPE 1,CL 16R1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MINIMUM TENSILE STRENGTH500 POUNDS PER SQUARE INCH LBS
PERIPHERAL SHAPE STYLEROUND
MATERIALWOOL COMP 16R1 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.312 INCHES NOMINAL IN
THICKNESS0.125 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
29739Reference document
Same NSN cross-reference
Reference document — Secondary reference
3061-00911-01Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20748?
20748 is a FLANGE,ADAPTER manufactured by schleich.
What parts can replace 20748?
There are 2 known substitutes for 20748: 29739, 3061-00911-01. Substitute compatibility should be verified for your specific system.
What is the NSN for 20748?
20748 is cataloged in the U.S. Government catalog under NSN 5310-00-579-9806. 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.