NSN catalog · 90,963 partsCatalog › Hardware and Abrasives › FSC 5310 › 5310-00-178-8631
Lock Washer P/N MS35333-75
In stock — 300 on our U.S. shelfNSN 5310-00-178-8631 5310001788631 NIIN 001788631
SECO Parts has 300 in stock of NSN 5310-00-178-8631 — 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
- Federal supply class
- FSC 5310 — Nuts and Washers
- Used on
- Multiple Launch Rocket System (MLRS)
Availability & condition
| Condition | Code | Qty on shelf |
|---|---|---|
| New Surplus | NS | 300 |
| Total | 300 |
Quantities are live from SECO's inventory system, not estimated.
Also known as:
5310-00-178-8631 001788631 MS35333-75 236-1016P5 824637-10 1718-00-00 1718-00 10401 99409 9190-00-1030 10340274
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
- 0.320–0.332 in
- Nondefinitive spec/std data
- Type 1 and Grade a and Style 1 and Composition 2
- Surface treatment
- Overall Passivate
- Surface treatment document and classification
- Overall Fed Spec Single Treatment Response QQ--35,TY 2 or Fed Spec Single Treatment Response QQ--35,TY 3
- Material thickness
- 0.028–0.034 in
- Outside diameter
- 0.594–0.610 in
- Material document and classification
- Overall Fed STD Single Material Response 66
- Hardness rating
- Rockwell C Minimum 40.0 and Rockwell C Maximum 50.0
- Material
- Overall Steel Comp 410
From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.
Cross-reference part numbers
MS35333-75 236-1016P5 824637-10 1718-00-00 1718-00 10401
Also referenced as
99409 9190-00-1030 10340274
Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual.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 | 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 5310-00-178-8631?
NSN 5310-00-178-8631 (5310001788631) — Lock Washer: SECO Parts has 300 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 5310-00-178-8631 available?
SECO Parts has 300 in stock in Augusta, GA — order or request a quote below.
How much does NSN 5310-00-178-8631 cost?
NSN 5310-00-178-8631 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 5310-00-178-8631 fit?
The federal catalog lists NSN 5310-00-178-8631 as used on: Multiple Launch Rocket System (MLRS).
What part numbers cross-reference to NSN 5310-00-178-8631?
Part numbers that cross-reference this NSN include MS35333-75, 236-1016P5, 824637-10, 1718-00-00, 1718-00, 10401. It is also referenced by older, superseded or advisory numbers: 99409, 9190-00-1030, 10340274. 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.