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5049929 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5049929: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include hole_diameter: 0.625 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN, outside_diameter: 0.900 INCHES MINIMUM AND 0.905 INCHES MAXIMUM IN, style_designator: KEY, material_thickness: 0.038 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN, internal_straight_key_width: 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN, material_document_and_classification: QQ-B-750,COND HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-504-9929, 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
5049929
NSN: 5310-00-504-9929
FSC: 5310 — Nuts and Washers
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
hole_diameter0.625 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
outside_diameter0.900 INCHES MINIMUM AND 0.905 INCHES MAXIMUM IN
style_designatorKEY
material_thickness0.038 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
internal_key_quantity1
internal_straight_key_width0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
material_document_and_classificationQQ-B-750,COND HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
distance_from_centerline_to_top_of_internal_key0.197 INCHES NOMINAL IN
NSN5310-00-504-9929
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5049929 · 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
•
INTERNAL STRAIGHT KEY WIDTH: 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
•
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY: 0.197 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-750,COND HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.900 INCHES MINIMUM AND 0.905 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.038 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
•
INTERNAL KEY QUANTITY: 1
•
HOLE DIAMETER: 0.625 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
INTERNAL STRAIGHT KEY WIDTH0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY0.197 INCHES NOMINAL IN
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-750,COND HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.900 INCHES MINIMUM AND 0.905 INCHES MAXIMUM IN
MATERIAL THICKNESS0.038 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
INTERNAL KEY QUANTITY1
HOLE DIAMETER0.625 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 5049929?
5049929 is a WASHER,KEY.
What is the NSN for 5049929?
5049929 is cataloged in the U.S. Government catalog under NSN 5310-00-504-9929. 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.