Self-Locking Extended Washer Nut P/N T4868C428

Specifications

Nominal thread size

Inches 0.250

Washer outside diameter

0.402–0.412 in

Material document and classification

Overall Assn STD Single Material Response A-S 5525 or Assn STD Single Material Response A-S 5732 or Assn STD Single Material Response A-S 5737

Precious material and location

Silver External Surface

Surface treatment

Overall Silver

Surface treatment document and classification

Overall Assn STD Single Treatment Response A-S 2410

Overall height

0.205–0.219 in

Thread class

3B

Washer thickness

0.019 in minimum

Material

Overall Iron Alloy 660

Temp rating

Fahrenheit Nominal 900.0

Thread direction

Right-Hand

Thread series

UNF

Thread quantity per inch

28

Width across flats

0.304–0.316 in

Locking feature

Prevailing Torque All Metal Design

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

Cross-reference part numbers

T4868C428 55789-428H19 MS21043-4 H43-4 R1160P04B LH3858R048 R1160P04C R1160P04 R1160P04D

Also referenced as

961C460-5 303852

Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual.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	D DLA/GSA stocked — stocked by DLA or GSA and issued from central stock
Unit of issue	EA each
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 5310-00-719-5570?
NSN 5310-00-719-5570 (5310007195570) — Self-Locking Extended Washer Nut: SECO Parts has 4 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for self-locking extended washer nut in federal supply class 5310 (Nuts and Washers).

Is NSN 5310-00-719-5570 available?
SECO Parts has 4 in stock in Augusta, GA — order or request a quote below.

How much does NSN 5310-00-719-5570 cost?
NSN 5310-00-719-5570 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 part numbers cross-reference to NSN 5310-00-719-5570?
Part numbers that cross-reference this NSN include T4868C428, 55789-428H19, MS21043-4, H43-4, R1160P04B, LH3858R048, R1160P04C, R1160P04. It is also referenced by older, superseded or advisory numbers: 961C460-5, 303852. SECO can quote against any of them.