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HMW1900 — SEAL,NONMETALLIC SPECIAL SHAPED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

HMW1900: SEAL,NONMETALLIC SPECIAL SHAPED.

SEAL,NONMETALLIC SPECIAL SHAPED. Key specifications include material: PLASTIC, POLYETHYLENE (PP) OVERALL, thickness: 0.125 INCHES NOMINAL IN, construction: ONE-PIECE, hole_diameter: 1.005 INCHES MINIMUM AND 1.007 INCHES MAXIMUM IN, overall_length: 72.000 INCHES NOMINAL IN, overall_diameter: 2.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-108-6348, 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
HMW1900
NSN: 5310-01-108-6348
NIINs: 011086348, 013632687
FSC: 5310 — Nuts and Washers
CAGE: 0VV01 — HANNAH M A CO (USA)
SPECIFICATIONS
materialPLASTIC, POLYETHYLENE (PP) OVERALL
thickness0.125 INCHES NOMINAL IN
constructionONE-PIECE
hole_diameter1.005 INCHES MINIMUM AND 1.007 INCHES MAXIMUM IN
overall_length72.000 INCHES NOMINAL IN
overall_diameter2.000 INCHES NOMINAL IN
style_designatorSTRIP
attachment_methodROUND HOLE
cross-sectional_width0.140 INCHES MINIMUM AND 0.152 INCHES MAXIMUM IN
cross-sectional_height0.190 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
NSN5310-01-108-6348
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: HMW1900 · 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
•
OVERALL DIAMETER: 2.000 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: PLASTIC, POLYETHYLENE (PP) OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 1.005 INCHES MINIMUM AND 1.007 INCHES MAXIMUM IN
•
THICKNESS: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER2.000 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALPLASTIC, POLYETHYLENE (PP) OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER1.005 INCHES MINIMUM AND 1.007 INCHES MAXIMUM IN
THICKNESS0.125 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
2600139Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2600133Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HMW1900?
HMW1900 is a SEAL,NONMETALLIC SPECIAL SHAPED.
What parts can replace HMW1900?
There are 2 known substitutes for HMW1900: 2600139, 2600133. Substitute compatibility should be verified for your specific system.
What is the NSN for HMW1900?
HMW1900 is cataloged in the U.S. Government catalog under NSN 5310-01-108-6348. 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.