Flat Washer P/N MS20002-4

Specifications

Material

Overall Steel Comp 1330 or Steel Comp 4130

Thickness

0.052–0.072 in

Hole diameter

0.252–0.260 in

Material document and classification

Overall Fed STD All Material Responses 66

Surface treatment

Overall Cadmium and Chromate

Minimum tensile strength

Pounds Per Square Inch 125000

Hardness rating

Rockwell C Minimum 25.0 and Rockwell C Maximum 32.0

Overall diameter

0.521–0.541 in

Surface treatment document and classification

Overall Fed Spec Single Treatment Response QQ--416,TY 2,CL 3

From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.

Cross-reference part numbers

MS20002-4 9387511121 MS21333-51 812066-00 NAS143-4 CSA46199 MS2000204

Also referenced as

25039-48 10116678

Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual. They find the item; confirm the current part number when you order.

Shown for identification only. SECO can quote against any of these numbers.

Logistics data

Source of supply	SMS DLA Land and Maritime, Columbus, Ohio
Acquisition advice code	Z Insurance/numeric stockage objective — held by the government as insurance stock for contingencies, not for routine issue. SECO has 100 on the shelf
Unit of issue	HD hundred
Demilitarization code	A Demilitarization not required — non-munitions-list item
Controlled inventory code	U Unclassified
Hazardous material indicator	N No hazardous material

Source: public FLIS/PUB LOG cataloging data.

Why buy from SECO

These quantities sit on our own shelves — we are a stocking supplier, not a broker sourcing after you order. Condition-coded stock, formal quotes with NSN/PN on the paperwork, POs and GPC welcome, fast U.S. shipping.

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FAQ

What is NSN 5310-00-209-0027?
NSN 5310-00-209-0027 (5310002090027) — Flat Washer: SECO Parts has 100 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for flat washer in federal supply class 5310 (Nuts and Washers).

Is NSN 5310-00-209-0027 available?
SECO Parts has 100 in stock in Augusta, GA — order or request a quote below.

How much does NSN 5310-00-209-0027 cost?
NSN 5310-00-209-0027 is a low-cost part, so SECO quotes it by the line rather than by the piece: there is a $50 minimum per line, and quantity pricing on request — usually answered the same business day.

What does NSN 5310-00-209-0027 fit?
The federal catalog lists NSN 5310-00-209-0027 as used on: Multiple Launch Rocket System (MLRS); A4 Bradley Fighting Vehicle; A3 Bradley Fighting Vehicle.

What part numbers cross-reference to NSN 5310-00-209-0027?
Part numbers that cross-reference this NSN include MS20002-4, 9387511121, MS21333-51, 812066-00, NAS143-4, CSA46199, MS2000204. It is also referenced by older, superseded or advisory numbers: 25039-48, 10116678. SECO can quote against any of them.