NSN catalog · 90,963 partsCatalog › Hardware and Abrasives › FSC 5310 › 5310-00-550-3503
Lock Washer P/N 10512925
In stock — 123 on our U.S. shelfNSN 5310-00-550-3503 5310005503503 NIIN 005503503
SECO Parts has 123 in stock of NSN 5310-00-550-3503 — Lock Washer — on our own shelf in Augusta, GA: a stocking supplier, not a broker. Low-cost part: quoted by the line, $50 minimum per line; quantity pricing on request.
One part, one step — answered within one business day. Several parts? and send them together.
- Ships in 1–3 business days from Augusta, GA
- Certificate of Conformance on request
- PO, GPC & major cards
- $50 minimum order — smaller requests still get a quote
- 30-day returns · terms
- FLIS item name
- WASHER,LOCK
- SECO description
- WASHER, LOCK, EXTERNAL TOOTH
- Federal supply class
- FSC 5310 — Nuts and Washers
Availability & condition
| Condition | Code | Qty on shelf |
|---|---|---|
| New | NE | 123 |
| Total | 123 |
Quantities are live from SECO's inventory system, not estimated.
Also known as:
5310-00-550-3503 005503503 10512925 AN936B716 136857 70178-36 MS35335-36 226478 36-53950 8E07 69841 AU27AR-271
Get a quote
Build a list across as many parts as you need, send it once, get one quote back — answered within one business day, usually the same day. POs and GPC welcome. $50 minimum order.
More to tell us? Need-by date, ship-to, your own RFQ document
Specifications
- Hole diameter
- 0.448–0.464 in
- Hardness rating
- Rockwell C Minimum 40.0 and Rockwell C Maximum 50.0
- Material
- Overall Steel Comp 1050 or Steel Comp 1551 or Steel Comp 1552 or Steel Comp 1053 or Steel Comp 1055 or Steel Comp 1059 or Steel Comp 1060 or Steel Comp 1561 or Steel Comp 1064
- Material thickness
- 0.032–0.040 in
- Material document and classification
- Overall Fed STD All Material Responses 66
- Surface treatment
- Overall Cadmium and Chromate
- Surface treatment document and classification
- Overall Fed Spec Single Treatment Response QQ--416,TY 2,CL 3
- Outside diameter
- 0.740–0.760 in
From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.
Cross-reference part numbers
10512925 AN936B716 136857 70178-36 MS35335-36 226478 36-53950 8E07 69841
Also referenced as
AU27AR-271 10335573
Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual.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 123 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.
In business since 1951 · 30,000+ contracts completed · about SECO & our policies · more questions answered
FAQ
What is NSN 5310-00-550-3503?
NSN 5310-00-550-3503 (5310005503503) — Lock Washer: SECO Parts has 123 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for lock washer in federal supply class 5310 (Nuts and Washers).
Is NSN 5310-00-550-3503 available?
SECO Parts has 123 in stock in Augusta, GA — order or request a quote below.
How much does NSN 5310-00-550-3503 cost?
NSN 5310-00-550-3503 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 5310-00-550-3503?
Part numbers that cross-reference this NSN include 10512925, AN936B716, 136857, 70178-36, MS35335-36, 226478, 36-53950, 8E07. It is also referenced by older, superseded or advisory numbers: AU27AR-271, 10335573. SECO can quote against any of them.
Same item, other stock numbers
Other NSNs the federal catalog names WASHER,LOCK. Same name is not the same part: check the part numbers.