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61913D — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

61913D: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL, hole_diameter: 0.897 INCHES MINIMUM AND 0.927 INCHES MAXIMUM IN, outside_diameter: 1.380 INCHES MINIMUM AND 1.410 INCHES MAXIMUM IN, style_designator: FLAT EXTERNAL TEETH, material_thickness: 0.052 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN, nondefinitive_spec/std_data: B TYPE. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-013-8510, 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
61913D
NSN: 5310-00-013-8510
FSC: 5310 — Nuts and Washers
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
materialSTEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
hole_diameter0.897 INCHES MINIMUM AND 0.927 INCHES MAXIMUM IN
outside_diameter1.380 INCHES MINIMUM AND 1.410 INCHES MAXIMUM IN
style_designatorFLAT EXTERNAL TEETH
material_thickness0.052 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
nondefinitive_spec/std_dataB TYPE
material_document_and_classificationASTM A576 ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN5310-00-013-8510
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 61913D · 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
•
STYLE DESIGNATOR: FLAT EXTERNAL TEETH
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A576 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 1.380 INCHES MINIMUM AND 1.410 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.052 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
•
NONDEFINITIVE SPEC/STD DATA: B TYPE
•
MATERIAL: STEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
•
HOLE DIAMETER: 0.897 INCHES MINIMUM AND 0.927 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORFLAT EXTERNAL TEETH
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A576 ASSN STD ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER1.380 INCHES MINIMUM AND 1.410 INCHES MAXIMUM IN
MATERIAL THICKNESS0.052 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATAB TYPE
MATERIALSTEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
HOLE DIAMETER0.897 INCHES MINIMUM AND 0.927 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 4
138510Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
P1437Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MILW6986TYPEBReference document
Same NSN cross-reference
Reference document — Identification reference
PE101Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 61913D?
61913D is a WASHER,LOCK.
What parts can replace 61913D?
There are 4 known substitutes for 61913D: 138510, P1437, MILW6986TYPEB and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 61913D?
61913D is cataloged in the U.S. Government catalog under NSN 5310-00-013-8510. 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.